Solve the inequality and graph the solution on the line provided. 3 − 7 x <−53

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

Precalculus question, image attached.

Find the interior angle of a regular polygon which has 6 sides