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Mathematics 6 Online
OpenStudy (anonymous):

a particular cell phone company offers 3 models of phones, each om 3 different colors and each available with any one of 5 calling plans. How many combinations are possible?

OpenStudy (anonymous):

Yup, just imagine a tree diagram. 3 models x 3 colors x 5 plans = 45 combos

OpenStudy (goformit100):

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