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i need finding the dimensions on the rectangle, ignore the one marked, i accidently clicked on it

Twenty-five percent of the customers entering a grocery store between 5 p. m. and 7 p. m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

George has seven boxes of five pencils. giulio three boxes of eight pencils. one of the boys arranges all his pencils equally into two groups. was this george or giulio how many are in each group explain

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.