13) If AGHJ is an equilateral triangle, GH=5x-13, HJ=11x-61, and GJ=7x-29, find HJ.
27
32
45
53

8 17/20

Step-by-step explanation:

1. (make all the fraction have the same denominator)the denominator is 20...

3/5= 12/20  3/4=15/20 1/2=10/20

2. (add) 5 12/20 + 15/20 + 2 10/20 = 7 37/20

3. (there is an improper fraction) u have to subtract 37-20...37-20=17 now add 1 hole number to the faction and put 17 over the 20 like this...17/20...now ur answer will be 8 17/20