Amy picks 3 of 7 colors of the rainbow, but she doesn't pick red with green, she doesn't use blue at all. How many different combinations of 3 colors can Amy pick? - QAmmunity.org

Amy picks 3 of 7 colors of the rainbow, but she doesn't pick red with green, she doesn't use blue at all. How many different combinations of 3 colors can Amy pick?

asked Oct 19, 2022 101k views

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