Answer:
g = 90
Step-by-step explanation:
72 ÷ 4 = 18
18 x 5 = 90
So...
4/5 = 72/90
<u>Check work:</u>
4 ÷ 5 = 0.8
72 ÷ 90 = 0.8
He made $108 in 9 hours
I first multiplied 12 by 9 and got 108