I A local pizza shop charges $12.50 for a large, one-topping pizza. Each additional
topping is $1.25.
a. Write an equation for the total cost C of a large pizza with t toppings.
b. How much does it cost for a three-topping pizza?
c. How much does it cost for a five-topping pizza?

Pranav and molly are selling pies for a school fundraiser. customers can buy blueberry pies and pumpkin pies. pranav sold 6 blueberry pies and 4 pumpkin pies for a total of $106. molly sold 6 blueberry pies and 3 pumpkin pies for a total of $90. find the cost of each of one blueberry pie and one pumpkin pie