Under what operations is the system of polynomials NOT closed?

A. Addition

B. Subtraction

C. Multiplication

D. Division

How can you solve 3x=9by multiplying each side by the reciprocal

Mrs. Arnold has decided to raise prices in her store. She will increase the price of each item by 8%. Write two expressions that could be used to calculate the new prices of store items. In your expressions, use t to represent the current price.

Which expression has a quotient of 400

What is all the factors of 64?

Tom begins his morning shift at 9:20 A. M. He works for 3 hours. He then takes a 50 minute lunch break before working his afternoon shift. What time does Tom's afternoon shift begin?

Which expression is equivalent to (4x+3) + 2x. (A.) 9 (B.) 9x (C.) 7x + 2x (D.) 6x + 3

What is the solution to the equation? 3 (x - 5) = 8x - 30 A. x = - 5 B. x = - 3 C. x = 3 D. x = 5

How can we write 0.17 in words? Choose 1 answer: A - 1 tenth and 7 hundredths B - 1 tenth and 7 tenths C - 1 tenth and 7 hundreds

Ally has 2 brothers and 3 sisters. In total, the mean of their ages is 6. What are their ages? And what will the mean be in 10 years?

Is 3/5 the same as 0.35