Jake earns $7.50 per hour working at a local car wash. the function, ƒ(x) = 7.50x, relates the amount jake earns to the number of hours he works. write the inverse of this relation

Agroup of three friends order a combo meal which includes two slices of pizza and a drink each drink is priced at $2.50 the combined total of $31.50 how much is the cost of a slice of pizza