Arepairman charges $18 per hour to repair appliances plus $0.27 per mile to drive to the house and back. it took the repairman 2 hours and 15 minutes to fix the andersen's washing machine, and he drove 21 miles to get to their home. he charged $51.84 for the visit. was the charge correct? if not why?

The charge was right.

Step-by-step explanation:

If he charged $18 per hour, it means he charged $18 for 60 minutes. He worked for 2 hours 15 minutes which is (60 ×2) + 15 = 135 minutes. For 135 mins, (135 ×18)÷ 60 = 40.5.

He drove 21 miles to his house and 21 miles back. That is 21×2= 42. And for $0.27 = $11.34.

Adding the costs, 40.5 + 11.34 = $51.84