Final answer:
To find the number of baseballs needed for 21 games, use the function b(n) = 14n, where n is the number of games. Plugging in n=21, we get b(21) = 14 * 21 = 294.
Step-by-step explanation:
To find the number of baseballs (b) needed for a given number of games (n), you can use the function b(n) = 14n. In this case, n=21. Plug in the value of n into the function: b(21) = 14 * 21 = 294.
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