Mr. martin's math test, which is worth 100 points, has 29 problems. each problem is worth either 5 points or2 points let x be the number of questions worth 5 points and let y be the number of questions worth 2 points.

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

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.

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.