#### Answer

(a) yes
(b) no

#### Work Step by Step

(a) 15 is divisible by 3 (since its digits sum to a number divisible by 3: 1+5=6 which is divisible by 3)
(b) 15 is not divisible by 4

Published by
Brooks Cole

ISBN 10:
1285199197

ISBN 13:
978-1-28519-919-1

(a) yes
(b) no

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