Because a polygon is a shape that has equal sides and no curves.
Answer:

Step-by-step explanation:
Let's solve this by making an equation.
$9 for the helmet, and $5.25 per hour.
h will stand for hours, C will stand for Amanda's cost.

Now, substitute in what we learned from the problem.

This is an equation you can use to solve for the hours.
Answer:
product
Step-by-step explanation: