Please explain the answer

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.

If eh = hg and hg=16, find the diameter of k

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.