Carl's jr $70 2 per hour to mow lawn plus an additional $5 to cover the cost of gasoline how much will carlos charge if he works for four and a half hours

The function for this would be
f(x)= 70x + 5

Plug the 4 and half hours (4.5) into the function

f(x) = (70 x 4.5) + 5
You then get 315 from multiplying 70 and 4.5. Then add the additional 5 from gasoline.
You end up with 320$ for working 4 and a half hours