The answer depends on the size of the cards. It could be just one large package.
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In the worst case, each package of cards contains 20 different cards, and each package is different than any other package. This means that, if there are 550 different cards, it would take 27.5 packages to contain all 550 cards. Since you cannot purchase a half package, you would have to purchase 28 packages to ensure that you get more than one of the same card.
45.30 ÷ 7.55 = 6
200/6 = 33.33 so she must purchase 34 packages which will give her 202 pencils.
Two packages of used comics (2 * 5 = 10 total).Two packages of new comics (2 * 3 = 6 total).Four packages total (10 + 6 = 16)
3 pencils to each calculator