Lee has three dollars. Chris has three dollars. Lee and Chris wants to but their mom a gift. The gift costs five dollars and fifty cents. A gift tags costs twenty-eight cents. Lee and Chris each want to pay and equal amount for the gift and tag. What do Lee and Chris each pay for the gift and tag?

Suppose there are 10 five and six-year-old attending a birthday party. when a 30 year old mother walks into the room with an infant in her arms, what happens to the mean age in the room? what happens to the standard deviation of ages in the room? a. the mean and standard deviation of both change. b. the meaning will change, but the standard deviation will stay approximately the same. c. i mean will stay approximately the same, but the standard deviation will change. d. the mean and standard deviation will both stay approximately the same.

Ineed with number 17 i don’t get it at alll

What is the standard form of -5x^2+2x^4-11+x^3+3x