Bobbie delivers pizza after school. The price of each pizza he delivers is $14. There is also a $3 delivery charge. To calculate the cost of a customer's order before taxes, he uses the equation t = 14p + 3, where t is the cost before taxes and p is the number of pizzas the customer ordered. In Bobbie's equation, what is the independent variable?
the independent variable is the one you can control.
Most people decide how many pizzas to order, not how much they want to pay, right?
Looks like you need to review the topic.