Does anyone know how to solve this?

m = -1

Step-by-step explanation:

-13 - 5m = -4 + 4m

First you want to get the m's on the same side, and remember, what you do to one side you do to the other.

-13 -5m + 5m = -4 + 4m +5m

-13 = -4 + 9m

Now, isolate the m

-13 + 4 = -4 + 9m + 4

-9 = 9m

-9/9 = 9m/9

-1 = m

Check

-13 - 5(-1) = -4 + 4(-1)

-13 + 5 = -4 - 4

-8 = -8

Hope this explains it!

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

false

step-by-step explanation:

false.   two legs of the trapezoid would be congruent, but the other two would not.   were all the legs congruent, then we'd have a square; were the 2 shorter sides congruent and the 2 longer sides also congruent, we'd have a rectangle.