Consider a perfectly competitive firm with total costs

?? = ? + ?? + ??2

a) Identify the fixed cost ??, and the variable cost of this firm, ??(?). (Each of them is just a part of the total cost.)

b) Find the average cost ??(?), and the marginal cost ??(?).

c) Long-run supply. Find the minimum of the ??(?) curve, which constitutes the “shut- down price” in a long-run setting. Use this “shut-down price” to describe the firm’s long-run supply curve. d) Evaluate the long-run supply curve at ? = 10, ? = 4, and ? = 2.

e) Short-run supply curve. Use your results from part (a) to find the average variable cost function. Find the minimum of the ???(?) curve, which constitutes the “shut- down price” in a short -run setting. Use this “shut-down price” to describe the firm’s short-run supply curve.

f) Evaluate the short-run supply curve at ? = 10, ? = 4, and ? = 2

Brad and Sam take a 30-year mortgage for a house that costs $169,675. Assume the following:

• The annual interest rate on the mortgage is 4.4%.
• The bank requires a minimum down payment of 18% of the cost of the house.
• The annual property tax is 1.4% of the cost of the house.
• The annual homeowner's insurance is $979.
• There is no PMI.

If they make the minimum down payment, what will their monthly PITI be?

Round your answer to the nearest dollar.

Suppose you take a 15-year mortgage for a house that costs $269,848. Assume the following:

• The annual interest rate on the mortgage is 4.2%.
• The bank requires a minimum down payment of 10% of the cost of the house.
• The annual property tax is 1.4% of the cost of the house.
• The annual homeowner's insurance is $889.
• The monthly PMI is $83.

If you make the minimum down payment, what is the minimum gross monthly salary you must earn in order to satisfy the 28% rule?

Round your answer to the nearest dollar.

Suppose data were collected on the number of customers that frequented a grocery stores on randomly selected days before and after the governor of the state declared a lock down due to COVID 19. A sample of 6 days before the lockdown were chosen as well as 6 days randomly chosen after the lock down was in place. The number of shoppers each day were as follows:

This is interval/ratio data because they are characteristics of the days.

1. Can these results be generalized? To whom?
2. Can cause and effect statements be made? Explain.
3. Calculate accountable, unaccountable, and total variation. Show your work.
4. Eta square is accountable variation divided by total variation. Determine eta square. It is interpreted as the variation in the dependent variable that can be accounted for by the independent variable. Describe eta square in terms of this problem.

True/False: Because hot water cools down faster than cold water, an ice cube tray filled with hot water will freeze faster than an ice cube tray filled with cold water. Explain your choice.

Hint: Although hot water cools down at a faster rate than cold water, it also has to undergo a larger temperature change. As it cools down, what happens to the rate at which it continues to cool down?

Explain how a mercury thermometer works. A mercury thermometer breaks open and loses its mercury while the thermometer is at a temperature of 20°C. You refill the thermometer with colored ethanol to a level of 20°C. a. At a temperature of 10°C, will the thermometer read a value below, above, or exactly 10°C? Explain. b. At a temperature of 30°C, will the thermometer read a value below, above, or exactly 30°C? Explain.

It has been said that if you are at a party and you tell someone you have a terrible disease or you are a terrorist, the conversation happily continues. But, if you tell them you are religious, an icy chill hits the air.
Peter Kreeft believes that much of this is due to ignorance in the area of religious studies. His personal pet peeve is the statement: “All religions are the same deep down.” He states: “That is simply factually untrue. No one ever makes this claim unless he is:

abysmally ignorant of what the different religions of the world actually teach or

intellectually irresponsible in understanding these teachings in the vaguest and woolliest way or

morally irresponsible in being indifferent to them.”

Why would somebody say “deep down?” What would this “abysmally ignorant, intellectually irresponsible and morally irresponsible” person be trying to say about the human condition? Finally, are “all religions the same deep down?” Is “Deep Down” unchangeable?

A student has a flat board and a small block. From the experiment, he wants to determine the coefficients of static and kinetic frictions.

A) Placing the block on the board, the student raises one end of the board slowly. When the board has a vertical height of 20.0 cm, the block begins sliding down the length of the board, 77.3 cm. Using this information, what is the coefficient of static friction?

B) As the block slid down the length of the board, it accelerated. If it took 1.60s for the block to slide down the full length of the board, calculate the coefficient of kinetic friction.

C) The student now lowers the angle of the board from parts A and B and pushes the block to start it moving. At what angle will the block slide down at a constant speed?

D) The student now sets the board at and angle of 30.0 degrees. As they put the block on the board, they begin pushing on the block, perpendicular to the board, to prevent it from sliding. What is the minimum force needed to do this?

Give a current example of systematic risk for the U.S. in 2020. What kind of actions could reduce your exposure to this risk?

There seems to be peace in Colombia. What is the future of tourism in Colombia? Compare figures between 2000 and 2020. What are future challenges?

3. After May 2020, what are the prospects of futures contracts as a significant risk management tool for firms? Discuss critically.

3. After May 2020, what are the prospects of futures contracts as a significant risk management tool for firms? Discuss critically.