On a test that has a normal distribution, a score of 28 falls two standard deviations above the mean, and a score of 22 falls one standard deviation below the mean. Determine the mean of this test.

There are 4 cups in a quart and 4 quarts in a ganon. jug of water? . how many cups are in a 5-gallon jug of water?

The sum of two numbers is 12 and their difference is 18 what are the two numbers

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.