Question 243074
x+100y=750
x+150y=1050 subtract.
--------------------------
-50y=-300
y=-300/-50
y=$6 per person.
x+100*6=750
x+600=750
x=750-600
x=$150 is the fixed cost.
Proof:
150+150*6=1050
150+900=1050
1050=1050