Algebra "story problem" for cost of pizza and toppings

Question

Chapter of Book:  Systems of Equations and Inequalities

Abigail orders a large 2 topping pizza for $14 and a medium 1 topping pizza for $10.  If all costs of a medium pizza are 80% of a similar large pizza, find the price of a large plain cheeze pizza and the cost of each large pizza topping.

Answer 1

1 topping is $4

no topping is $6

$6.00/10 x 8 [80%] ,for a large plain cheese pizza.

=12.40

a large pizza woud cost [$6.00 +$2.40] $8.40

1 large topping is $ 1.50