I need help but just how you got it

Cass decided to sell game programs for the hockey game. the printing cost was over 20 cents per program with a selling price of 50 cents each. cass sold all but 50 of the programs, and made a profit of $65. how many programs were printed? letting p represent the number of programs printed, set up an equation that describes this situation. then solve your equation for p.

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

How do you determine if an ordered pair is a solution to a given equation?