Maggie loaned 4 of her comic books to her friend. The shaded portion of the strip diagram below shows the percentage of Maggie's comic book collection she loaned to her friend. How many comic books are in Maggie's collection? pls help

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

Mr. thompson took five of his children to the bowling alley the cost for children 12 and older is 350 the cost of four children under 12 inch to 25 he spent a total of 1625 how many of his children are 12 and order