Question

Ben Frank is an electrician who installs lighting fixtures. He charges (in dollars) his clients 15h+40f15h+40f where hh is the number of hours worked and ff is the number of fixtures installed.

How much does Ben Frank charge when he works 77 hours and installs 99 fixtures?

Answer 1

h is the numbers of hours worked, so you plug in 77 for h.
f is the number of fixtures installed, so you plug in 99 for f.

Answer 2

Hey I wanna is the day you got your head out and then you gotta was the night you were