Use the frequency polygon to work out an estimate for the mean rounded to 1 DP.

Diana is painting statues she has 7/8 of a liter of paint each statue requires 1/20 of a liter of paint how many statues can she paint?

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.

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8