Which statement shows the associative property of addition?

A.

If m + 3 = 18, then 18 = m + 3

B.

(u + 7) + 13 = u + (7 + 13)

C.

21 + 2y = 2y + 21

D.

3 · (5 · x) = (3 · 5) · x

The product of 3, and a number increased by 6 , is minus-24

Solve the inequality. 3 (x - 1) < - 3 (2 - 2x) A) x > 1 B) x < 1 C) x > - 1 D) x < - 1

Choose a relationship model that will reach $0 in the same number of days as this scenario: Mika has $12 and spends $2 each day. y = - 2x - 12 y = - 3x + 18 y = - 4x + 12 y = - 12x + 2

What is the end value of - (-31) ?

Mel and Ken want to refinish the community center gym floor. The rectangular floor is 15.2 m wide and 25.6 m long. If 1 gallon of polyurethane covers about 180 square meters, how many gallons should Mel and Ken buy?

Perimeter is a square clock is 16 6/9 inches. Perimeter of a rectangular clock is 16 16/18 inches. Write an inequality comparing the two perimeters.

About 6/8 of the earth's suface is covered by water. About what fraction of earth's surface is not covered by water?

X^2 - 7 = 60 How do I solve the equation?

Mr. Frankel bought 7 tickets to a puppet show and spent $43. He bought a combination of child tickets for $4 each and adult tickets for $9 each.

Explain how your brain and sensory organs get information from the outside world