Equation: 6x=3x+72
So 3x=72
x=24

$\angle GFH=\angle FBD=\angle ABC=144$
If im right it should be 116
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Answer:
He should charge 8.50 for each car for a profit of 162 dollars.
Step-by-step explanation:
Plot y = (x - 4)(40 - 8(x - 8)) on a graphing calculator such as desmos