Acomputer printer can print a 640-word document in 30 seconds. at this rate, how many seconds are required to print a document that contains 855 words?

Can anyone me with 32,33,36,37,and 40.

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.

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?