Answer:
Options (A), (C) and (E)
Step-by-step explanation:
Given equation is,
-3x + 7 = -5 + x
-3x + 7 - 7 = -5 + x - 7
-3x = -5 + x - 7 Option (C)
-3x = x - 12
-3x - x = -12
-4x = -12 Option (A)
4x = 12 Option (E)

x = 3
Therefore, Options (A), (C) and (E) are the correct options.
Well first you need to find the unit rate. Divide 15 by 3.....get 5 minutes for 1 mile. Then you would multiply 5 by 8 which is 40 so 40 minutes (B) is your answer :)
That’s the work and the answers
100/25 = 4
4*3 = 12
The answer is 12%
Hope this helps! :)