Kim and leon exercise a total of 20 hours each week. leon exercises 2 hours less than 3 times the number of hours kim exersices. how many hours does each exercise?

Find the value of the variable and the length of each secant segment.

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.

For which pair of functions is (gof)(a)=|a|-2?