a) state objective function b) state constraints c) solve the quantity of A&B that yields the highest profit

Question 8, Problem B.6 The Chris Beehner Company manufactures two lines of designer yard gates, called model A and model B. Every gate requires blending a certain amount of steel and zinc, the company has available a total of 25,000 lb of steel and 6,000 lb of zinc. Each model A gate requires a mixture of 125 lb of steel and 20 lb of zinc, and each yields a profit of $70. Each model B gate requires 100 lb of steel and 30 lb of zinc and can be sold for a profit of $50. The aim of the objective function for Chris Beehner Company should be to the objective value