Calculate the pH change that results when 12 mL of 2.8 M HCl is added to 580. mL of each of the following solutions. Use the Acid-Base Table. Please see pH changes - part a and b and pH changes - part c and d for assistance.

(a) pure water

(b) 0.10 M CH3COO−

(c) 0.10 M CH3COOH

(d) a solution that is 0.10 M in each CH3COO− and CH3COOH.

A plane leaves the airport in Galisteo and flies 170km at 68.0 degrees east of north and then changes direction to fly 230 km at 48.0 degrees south of east, and then changes direction to fly 120 mi west, after which it makes an immediate emergency landing in a pasture. When the airport sends out a rescue crew, in which direction and how far should this crew fly to go directly to the plane?

1) Please write an example for a posthoc fallacy
2) Demand for cars depends on many factors such as the price of cars, income, price of public
transportation, price of gasoline. We want to see the relation between demand for cars and
price of gasoline. What does ceteris paribus imply?
3) Write an economic variable that changes over time
4) Write an economic variable that changes from observation to observation

The changes made by the Tax Cut and Jobs Act, 2017 to the tax provisions have changed tax rate for 2018 and people are getting a first hand experience of what it means to them. Address the questions below: Does everyone benefit from the changes in tax provisions or does it favor one group over others? Please make this no less then 3 paragraphs and in depth, I will rate well, Thank you!

Medicare Coverage Medicare has changed considerably since its inception in 1965. How has this entitlement program changed over the years. Please discuss original Medicare, Medicare + Choice, Medicare Advantage and Prescription Drug Coverage in your postings. How has the coverage, delivery, and payment for these services changed with each modification? Are these good changes or bad changes for Medicare patients? Why or why not? references please

1. What are the hormonal and physical changes going on in Stephanie during her pregnancy? What is keeping her from menstruating as normal?
2. Describe some of the changes to Stephanie’s body that will take place during the remainder of her pregnancy. Focus on the uterus, skeletal system, and cardiovascular system.
3. What prevents Stephanie’s body from rejecting the new tissue developing in her body that is genetically different from her tissues?

Y enterprises sells is product at Rs. 20 per unit. Variable costs are Pa 15 per st (2/3
manufacturing and 1/3non manufacturing). Fxed costs are incurred uniformly throughout the year and amount to Rs.750,000 (2/3 mamufacturing and 1/3 non-mammfactaring
Required:
a) The number of units that must be sold to carn an after-tax income of Ra. 100,000
assume income tax rate of 20%). Prove your answer by prepaning imcome
statement to that effect
b) Illustrate the role of changes in fiscal policies (changes in tax ates) and labor
unions (changes in structure of salaries and wages) in altering the break-even
point calculated in (a). Your answver must be supported by calculations based an
arbitrarily assumed values

This question deals with the theory of economic regulation. Imagine there are 4000 primary care physicians in the state of Lincoln. They oppose changes to scope of practice regulations currently being debated in the legislature that would bring new increased competition from non-MD providers (changes that would allow nurse practitioners to practice independently). It is expected that these changes would reduce physician incomes by $10,000 and reduce health insurance premiums by $10 for each of the state’s 4 million residents a. Discuss the impact of the policy change on the average primary care physician and resident of Lincoln and the aggregate impact on the two groups. b. Based on the theory of economic regulation what action would you expect from the state’s legislature. c. What is the purported public interest argument in favor of scope of practice regulation. Assess the validity of these concerns in this context.

Using excel, illustrate and check the following observations on bonds and interest rate sensitivity.

You can use any set of a given bond's characteristics of your choosing.

1. Prices of long-term bonds tend to be more sensitive to interest rate changes than prices of short-term bonds.

2. Bond prices' sensitivity to changes in yields increases at a decreasing rate as maturity increases.

3. Interest rate risk is inversely related to the bond's coupon rate. Prices of low-coupon bonds are more sensitive to changes in interest rates than prices of high-coupon bonds.

4. The sensitivity of a bond's price to a change in its yield to maturity is inversely related to the yield to maturity at which the bond is currently selling.

You can make up the excel macros.