Answer:
7 pizzas
Step-by-step explanation:
Using the formula for slope (rise/run) we can calculate how much one pizza cost.
[tex]\frac{58-25}{5-2} =\frac{33}{3} = 11[/tex] dollars per pizza.
Take the $11 per pizza and divide it by $80 to get 7.2727 pizzas. Since you can not have .2727 of a pizza you round down to 7 pizzas.