Jill swam 200 meters in 2 minutes 42 seconds. if each lap is 50 meters long, which is most likely to be her time, in seconds, per lap?

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.

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota