A swimming pool can be filled by a hose in 8 hours. It can be emptied by a drainpipe in 12 hours. If the drainpipe is open while the tank is filling, find how long it will take to fill the pool. [Hint: The pool could be
mone-eighth filled in one hour.]

anyone? find the second, fifth, and ninth terms of a sequence where the first term is 65 and the common difference is -7. 72, 93, 121 72, 79, 86 58, 37, 9 58, 51, 44

27 is what percent of 108? 27 is % of 108

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.