Using the simplex method, find the optimal solution to the
following LP: A company manufactures three products, A,B, and C.
The sales volume for A is at least 50% of the total sales of all
three products. However, the company cannot sell more than 75 units
of A per day. The three products use one raw material, of which the
maximum daily availability is 240 pounds. The usage rates of the
raw material are 2 lb per unit of A,...