What is the equation of a line with a slope of -1/2 that passes through the point (6,-6)

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

What is the binomial expansion of (2x-3)^5

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.