A letter to Europe from the United States cost $.94 to mail. A letter mailed within the United States cost $.44. Nancy mailed five letters for $3.70, some to Europe and some to the United States. How many letters did she send to Europe. Explain.

You are looking at two area rugs for your bedroom. one is a square with side lengths of 6.3 feet. the other is a rectangle that is 4.8 feet by 8.2 feet. which rug will cover the greatest area? how much more area will it cover? with work plzz and u so much

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.

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}