Ethan wants to buy an action figure for $3 and several packs of trading cards for $6 each at a toy store. He can spend no more than $39 at the store today, but if he spends $15 or more he will receive a free poster. Write and solve an inequality where x represents how many packs of cards Ethan can buy today to receive the free poster.

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?

The domain of the following relation: r: {(3, 5), (8, 6), (2, 1), (8, 6)} is (1 point) no domain exists {1, 5, 6} {3, 8, 2, 8} {2, 3, 8}