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
5x+8
The from is the key word
That means the second term is first
6x^2 -2x +6 - (6x^2 -7x -2)
Distribute the minus sign
6x^2 -2x +6 - 6x^2 +7x +2
Combine like terms
the answer I got is negative 4
He's wrong.
-8 < 4
hope it helps