Under which of the following operations are the polynomials 8a + 14 and

3b - 9 not closed?

A. Division

B. Subtraction

C. Addition

D. Multiplication

Solve 15 ≥ - 3x or 2/3 x ≥ - 2.

James used substitution to solve this system of equations which equation could be the result of his first step 2x+3y=12 y=x+1.5 a. y=2x+3y b. y=2x+3y+1.5 c. 2x+3 (x+1.5) = 12 d. 2x+3x+1.5=12

Tin of biscuits come in three sizes. There are 28 biscuits in a small size and four times as many in the medium size. In the large size there are seven times as many as in small size how many biscuits are in the small and large size

By opting out of paper bank statements, your bank promises savings of $2 per month. how much will you save in a year?

The volume of a triangular prism is increased by a factor of 8. By what factor is the surface area of the figure increased? O2 O4 O 16 O 24

A car salesman sells cars with prices ranging from $5,000 to $45,000. The histogram shows the distribution of the numbers of cars he expects to sell over the next 10 years.

Each basketball player runs 25 laps around the court during each practice. Which player has completed exactly of the distance for this day of practice?

A ball is dropped from a height of 30 feet and each time it hits the ground it bounces 0.75 of the previous height. What is the height of the ball after it makes its third bounce? Round to the nearest hundredth of a foot

Natasha is measuring the angles of a triangle. She measures the first two angles and gets 60° and 80°. What should be the measure of the third angle? A) 10° B) 20° C) 40° D) 220°

Russel and Aaron can build a shed in 8 hours when working together. Aaron works three times as fast as Russel. How long would it take Russel to build the shed if he were to work alone?