Answer:
-b = 14
-n = 28
Step-by-step explanation:
For b
50/100=b/28 cross-multiply
1400= 100b divide both sides by hundred
-b = 14
For n
25/100= 7/n cross multiply
25n = 700 divide both sides by 25
-n = 28
-8 x 217 = 1728
I believe this is correct
There are four pairs (m,n) that work: (5,10), (6,6), (8,4), and (12,3).