Laura is training to run a race. She keeps track of the number of miles she runs. She has been training for 7 weeks, and she has run a total of 63 miles. At what rate has she been running, in miles per week?

Explanation:

You divide the two values given to get 63/7 = 9.

We can think of it as if it was a ratio 63 miles: 7 weeks. Dividing both parts of that ratio by 7 will turn the "7 weeks" into "1 week".

You can check the answer by multiplying the 9 miles per week with the 7 weeks to get 9*7 = 63 miles total.

step-by-step explanation:

its 512 because parenthesis and to the 2nd power is 512 so it will be 512

b. b < 1 might be the correct answer