Need help getting a equation that you distribute that will equal x=6

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.

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.