Jessica Lopez

An athlete in a competition needs to get from point A to another point B directly across from a river. He can swim in stationary water at a speed of 2.0 mi/h, and he can run at a speed of 5.0 mi/h. If the river does not flow, then to get from A to B he wo...

At a book fair; three books and two magazines cost $7. Two books and five magazines cost $6.50. Find the cost of a book and the cost of a magazine.