Jeremy is trying to calculate how much it will cost to add extra recessed lights into his new house. The equation C(r)=140r+100 represents the cost C(t) as a function of the number of lights (r). What does C(9)=1360 represent in the context of the problem?

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?