Use the following information for the next three questions.

#1. You work at a grocery store that has just concluded a big sale on ground beef.When the price was $3.00 per pound, your store sold 9000 pounds in a week.During the sale at a price of $2.50 per pound, your store sold 12000 pounds in a week.It costs your store $1.75 per pound in all costs for the ground beef.

A) What is the price elasticity of demand for ground beef for your store?

B) If your store's goal is to increase revenue, what should you do?

C) What is the desired margin at a price of$3.00 per pound on ground beef for your store?