You can factor it into (-5m+n)(-5m+n)
I believe that the question is assuming this is taking place over one month here is what I think you would do.
1) 75/12.5 = 6
2) add that answer to 75, so 75+6, and you get 81
Answer:
24-3=21 , 36-4=32 , 3+4=7 , 7 x 5 , which equals 35
Step-by-step explanation: