Answer:
a. c=240+8x
b. e=12x
Step-by-step explanation:
a. The equation would indicate that the production cost in dollars is equal to the design and set-up cost plus the cost per hat for the number of hats produced:
c=240+8x, where c is the production cost in dollars and x is the number of hats produced.
b. The equation would indicate that the amount of money the band will make from selling the  hats is equal to the price per hat for the number of hats sold:
e=12x, where e is the amount of money the band will make from selling the  hats and x is the number of hats sold.