30% of the parks have a pool. If there are 9 parks with pools, how many parks are there altogether?

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2

Last week , donnell practiced the piano 3 hours longer than marcus . together, marcus and donnell practiced the piano 11 hours . for how many hours did each young man practiced the piano

Find the value of x to the nearest tenth. a. 4.5 b. 5.4 c. 6.3 d. 7.2