The football team is selling t-shirts to raise money for new equipment. The cost of each t-shirt is $2.50 and the t-shirt company charges a print fee of $25. The team will sell shirts for $12 each. Consider the following functions below that represent the cost, C(x), and revenue, R(x), of shirts sold.

C(x) = 2.5x +25

R(x) = 12x

Write an equation that best represents the profit function of how much the basketball team will make?