Mrs. Malone earns two hours of paid vacation for every 9 days she works. How
many hours of paid vacation will Mrs. Malone
earn after working 81 days

Mrs. Malone would earn 512 hours of paid vacation time if she works of 81 days

18 vacation hours, because 9 goes into 81 nine times, and for each nine days she gets 2 hours vacation, so multiply 9•2=18 (this probably doesn’t make too much sense but it’s correct)