Answer:
Riley can only order 2 pizzas
Step-by-step explanation:
1. subtract delivery fee from the 20 dollars.
$20 - $6 = $14
2. Find number of pizzas with the $14 that she can use.
$14 ÷ $5 = 2 R $4
thus she can only buy 2 pizzas
and n = 2 in this case.