HURRY Jamal needs to purchase a countertop for his
kitchen. Jamal measured the countertop as 5 ft.
The actual measurement is 4.5 ft. What is
Jamal's percent error?
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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.

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Find the value of x to the nearest tenth.