Question

An electrician earns $45 per hour for doing a house call. Which expression can be used to find how much an electrician earns for any number of hours, h?

A. 45h
B. h + 45
C. 45 + h
D. 45 – h

Answer 1

a) 45h

Step-by-step explanation:

all you need to do to find out how much he earns for a certain amount of time is to multiply the rate by the number of hours he works. since our rate is 45 and since h represents the number of hours he works, you would just need to plug in a number for h to be able to solve, since 45h or 45(h) is the same thing as 45 times h.