Which algebraic expression is a polynomial with a degree of 3?

A) 4x3 – StartFraction 2 Over x EndFraction

B) 2y3 + 5y2 – 5y

C) 3y3 – StartRoot 4 y EndRoot

D) –xyStartRoot 6 EndRoot

Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants

For what values of x is x2 + 2x = 24 true?

Three times the sum of a number and seven is negative thirty-six. what is the number?