Greg's family paid $312 to stay in a hotel for 4 nights. greg wants to create an equation in the form see equals square dee, to represent the total cost, c, to stay in the hotel for d days. what number should greg put in the square to complete his equation?

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

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.

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)