Stacy travels 4 times as fast as kevin. traveling in opposite directions, they are 227.5 miles apart after 3.5 hours. find their rates of travel.

What is a rational number between 9.5 and 9.7

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?