Set L because the answer has to be all even numbers bigger then 6 so 6 can't be added in and smaller then 16 so it can't have 16 in it ether so that leaves 8 10 12 14
Answer:
28
Step-by-step explanation:
Area (trapezoid) = 1/2 x (6 + 8) x 4
= 2 x 14
= 28
Profit = Revenue - Cost = R(x) - C(x) = (x^2 + 20x + 50) - (50x + 30) = x^2 - 30x + 20