90
84 minus 32 is 52.
84
7(r-12) A 7 is taken out because it is a common factor to both terms.
84 - 75 = 9
152 - 84 = 68
365-84 = 281
2,013 minus 1,929 is 84.
The answer for 2011 minus 1927 is 84
107
an A minus obviously ranges from an 80 to a 84 :D
63