75m + 800 = 95m + 500
Solve that equation
Which should get you m=15
15 is your answer
I would write the missing variable as x. It's what everyone uses.
Anyway, 91 divided by x is 65.
The way we can do this is reverse 65 and x.
91 divided by 65 = x.
91 divided by 1.4 = 65
65 x 1.4 = 91
x (or ?) = 1.4
NOM = STR
answer is A. first one