Franks bookshelf is 1 1/2 meters high. Each row in the bookshelf is 3/16 of a meter high. How many rows are there in franks bookshelf?

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

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge