Ted has $55.00 in his pocket. Which purchase will he be able to pay for with cash?

Three books at $16.99 each cost 3 × $16.99 = $50.97, which is less than Ted’s $55.00. The other purchases cost $59.90, $60.94, and $55.99, respectively, so they exceed the cash he has. The purchase he can afford is three books for $16.99 each.

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