What is the slope of the line that passes through the points (3, 5)(3,5) and (-1, 5) ?(−1,5)? Write your answer in simplest form.

I'm terrible at math any here is appreciated.

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.

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?