use order of operations (multiplication & division left to right then addition)
135
135
420
65 + 68 + 76 + 84 + 88 + 88 + 89 + 90 + 92 + 93 = 833
84 divided by 3
84 divided by 6 = 14
19 divided by 84 is 0.22619047619
84 divided by 2 is 42.
The GCF is 4.
84 divided by 12=7
7
98 + 52 + 95 + 41 + 100 + 82 + 93 + 84 ÷ 8 = 571.5
756 divided by 9 = 84 so it is 84 hope this helps