Congruence transformation what is y

What is the value of 1/3× + 7x, when x =5

John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

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.