Really need help please! Brainliest to correct!

A manufacturer of tools, selling rechargeable drills to a chain of home improvement stores, charges $4 more per drill than its manufacturing cost, m. The chain then sells each drill for 140% of the price that it paid the manufacturer. Find a function P(m) for the price at the home improvement stores.

The function for the price at the home improvement stores is given by P(m)= __? Simplify