Question 839696
2x+1y=13.50
4x+3y=45

(-2)2x+(-2)1y=(-2)13.50
4x+3y=45

-4x-2y=-27
 4x+3y=45

y=18

2x+1y=13.50
4x+3y=45

(-3)2x+(-3)1y=(-3)13.50
4x+3y=45

-6x-3y=-40.50
 4x+3y=45

-2x=4.50
-2x/-2=4.50/-2

x=2.25


for each topping it is $2.25 and for each large pizza it is $18