Video games sold: x

Revenue function: R (x) = 60x

Cost function: C (x) = 12 + 7x

Profit function: P (x) =

We are given

x as the number of video games sold

the function for the revenue

and the function or the cost

We are asked fro the profit function.

Profit has the general formula

Profit = Revenue - Cost

Substituting

P (x) = R (x) - C (x)

P (x) = 60x - (12 + 7x)

P (x) = 60x - 12 - 7x

P (x) = 53x - 12