Which polynomial is in standard form? 4xy+3x3y5 - 2x5y7 +4x7y9
2x5y7+7y-8x2y5 - 12xy2
5x5 -9x2y2 - 3xy3 + 6y5
7x7y2 +5x11y5 - 3xy2 +2

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

Mike wants to make meatloaf. his recipe uses a total of 8 pounds of meat. if he uses a 3 to 1 ratio of beef to pork, how much pork will he use? enter your answer as a mixed number in simplest terms.

Which of the following is the sum of 3 1/6 + 6 3/8?