a) You are buying 8 songs and there are 5 different genres to choose from. How many ways can you choose the 8 songs if you can have as many of each genre as you would like? b) How many solutions are there to the equation 21 + 12 + 13 + 14 + 15 17 where I1, T2, 13, 14, 15 are nonnegative integers?

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