Answer:
1/2 a mile
Step-by-step explanation:
an hour is 60 minutes long. she walked 1/4 of a mile twice.
-2(-2) + (12-9) = 2 + 9 + -2(-2)
x = - 4
8 = 2x + 16
2x = - 8
Answer: 6
This is a direct application of the exponent rule .