Lee baked 50 cookies. he gave some to a friend and ate 50% of the remaining cookies. he had 15 cookies left. what percentage of the cookies did he give to his friend?

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.

Ill mark the brainliest if you me with the these three questions 7,8,9

Joanie wrote a letter that was 1 1/4 pages long. katie wrote a letter that was 3/4 page shorter then joagies letter. how long was katies letter