Mackenzie ran the olympic marathon 26 1/5 miles in a time of 5 4/5 hours. how far did she run in 1 hour?

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.

Find the value of x that will make l ll m

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)