Posted by osmin on Wednesday, January 25, 2012 at 12:40am.
Bobby has 3 times as many model spaceships as his friend
Sylvester does. Bobby has 21 spaceships. How many model
spaceships does Sylvester have ?

math  Damon, Wednesday, January 25, 2012 at 1:28am
21/3 = 7
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