Answer:
3x + 15 = 90
3x = 90 - 15
3x = 75
x = 25
25
Step-by-step explanation:
Subtract 15 from both sides then divide by 3.
7 to 8
7-15=8
250%
(2 1/2) × 100%
= 250%
= 2.5
24
522 miles
174 x 4 = 522