SOLUTION: Cookies are sold singly or in packages of 13 or 39. With this packaging, how many ways can you buy 78 cookies?

Algebra ->  Finance -> SOLUTION: Cookies are sold singly or in packages of 13 or 39. With this packaging, how many ways can you buy 78 cookies?      Log On


   

Question 974853: Cookies are sold singly or in packages of 13 or 39.
With this packaging,
how many ways can you buy 78 cookies?
Answer by Alan3354(69443) About Me  (Show Source):