Please help me with my math question on volume: prisms and pyramids

This is so hard and it’s for a test

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made. determine an equation to model his situation?

How many terms does the polynomial x^2 y^2 have