Elizabeth makes cakes. To make 6 cakes, she uses 7 1/2 cups of sugar. How many cups of sugar are needed to make 1 cake?

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.

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"