There are 6 new books and 9 used books on a shelf. (a) what is the ratio of new books to all books? (b) what is the ratio of used books to all books?

You have 17 cats that live in houses on your street, 24 dogs, 3 fish, and 4 hamsters. what percent of animals on your block are dogs?

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.