Answer:
The rental cost per hour is $4.12.
Step-by-step explanation:
A painter rented a wallpaper steamer at 9 am and returned it at 4 pm.
4 pm = 16:00 pm
He rented a wallpaper steamer for the time = 16:00 - 09:00 = 7:00 hrs.
He paid for 7 hours = $28.84
Therefore, for 1 hour = 28.84 ÷ 4 = $4.12
The rental cost per hour is $4.12.
