**Unformatted text preview: **requirements: • There are at most 6 yellow tulips and at most 6 purple tulips. • The number of orchids is a multiple of 5. • There are at most 4 lilies. • The number of roses must be a multiple of 7. Each is either red or blue, but at most 1 / 7 of them are blue. In how many combinations she can order the ﬂowers? 1...

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- Winter '07
- YaoyunShi
- University of Michigan, Ann Arbor, purple tulips, yellow tulips