Am I the only one who hates algebra :|

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

What would the rule be for the reflection of y=-3