Question 260956
F+25X=300
F+40X=420 SUBTRACT.
-----------------
-15X=-120
X=-120/-15
X=$8 PER GUEST.
F+25*8=300
F+200=300
F=300-200
F=$100 IS THE FIXED COST.
PROOF:
100+40*8=420
100+320=420
420=420