Jeff is selling Raspberry Pi cases for $4 dollars. If Jeff sells 5 Raspberry Pi cases, how much will he make off the sale?
Well... the segment FG = 4x + 3, the segment GH = 7x - 12, now, the
segment FH = FG + GH, those two fellows added up, and we know that FG and GH are both equal halves because G is the midpoint.
thus, FG = GH
or

and fairly sure, you know how much that is.
Step-by-step explanation:
i hope you will get the answer