8x - 9y = 11 (subtract 8x from each side)
- 9y = -8x + 11 (divide -9 from each side)

y =
D.
Hey You!
The two are related because they both use the same three numbers. For example:
6 × 3 = 18 3 × 6 = 18
Or,
18 ÷ 3 = 6 18 ÷ 6 = 3
Answer: 90
90 miles with light traffic 93 with mild traffic and 119 miles with backed up traffic!
I would do 12 x 10 = 120
to compensate do 120 - 12 =108 same as 12*9 = 108
The estimate is decent, because we are only $12.00 from the real answer.