96
Step-by-step explanation:
3 x 7 = 21
7 x 4 = 28
5 x 7 = 35
1.5 x 4 = 6 x 2 = 12
35 + 28 + 21 + 12 = 96
answer: c
because if you look at the chart you can see a pattern and compare it to the question he simplify out your
but i think the formula is f(x)=6x
the answer is 40.
proof: