Tim had 4 paper fraction pieces, each of thirds, fourths, sixths, and twelfths. he did not have enough pieces to show both 2/4 and 1/3 as equivalent fractions with the same denominator. how could he form enough pieces by making 1 cut with a scissors

Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.