¿En que caso se da una regla de tres simple mixta?

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.

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily