I need help again guys In two hours, Khadija completed ¾ of her race. How long will it take her to complete the entire race?

Me what is the value of x? showing work would be 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.

Need showing work for this problem 56.25 ×25.80