Write square root of −12 ​in simplest radical form.

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

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.

An elevator travels 310 feet in 10 seconds. at that speed, how far can't his elevator travel in 12 seconds?