Juice sales: The number J, in thousands, of cans of frozen orange juice sold weekly is a function of the price P , in dollars, of a can. In a certain grocery store, the formula is J = 11 − 2.5P . a....

Juice sales: The number J, in thousands, of cans of frozen orange juice sold weekly is a function of the price P , in dollars, of a can. In a certain grocery store, the formula is

J = 11 − 2.5P .

a. Express using functional notation the number of cans sold weekly if the price of a can is $1.40, and then calculate that value.

 b. At what price will there be 7.25 thousand cans sold weekly?

 c. Solve for P in the formula above to obtain a formula expressing P as a function of J.

d. At what price will there be 7.75 thousand cans sold weekly?