84 divided into sevenths could either be:
84 x (1/7) or simply 84/7
In the end, the answer would be 12.
He should take them out at 9:20.
Hope this helps!
Answer should be B.
second choice
Answer:

Step-by-step explanation:
Given equation:

Factor out 3 from the first 2 terms:

Divide the coefficient of x by 2 and square it: (-3 ÷ 2)² = 9/4
Add this inside the parentheses and subtract the distributed value of it outside the parentheses:

Factor the parentheses and combine the constants:

If she went back 5 miles than the displacement would be 0.
Just subtract the amount of miles she went back from the miles she went forward 5 - 5 = 0