Let me ask my brother he's smart
The answer is 0.3 (1/3.)
Proof?
f(0.3) = 18(0.3) + 8
f(0.3) = 6 + 8
f(0.3) = 14
14 = 14
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1) Area of trapezoid =1/2(base 1 +base 2)* height
44.1 is the answer to that