On a multiplication facts test, Samantha had to know the facts from 1-12. She earned 3 points for every fact she solved correctly and used a 10 extra points ticket that she previously received from her teacher. Which equation can be used to find p, the total number of points Samantha earned for solving f facts correctly?

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.

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?