In a 3-digit number, the hundreds digit is four more than the ones digit and the tens digit is twice the hundreds digit. if the sum of the digits is 12, find the three digits. find the number.

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coop?

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.

If the class was going to get a class pet and 5 picked fish and 7 pick bird and 8 picked rabbits have many students were in the