The length of a rectangle is 3 cm longer than its width. if the perimeter of the rectangle is 66 cm , find its length and width.

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

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.