Which equation is an example of the use of the associative property of addition?

1) x+7=7+x

2) 3 (x+y) = 3x+3y

3) (x+y) + 3 = x + (y+3)

4) 3 + (x+y) = (x+y) + 3

8 copies of the same CD cost $120. What is the cost of one CD?

In Mariokart DS, there are eight start up characters and additional 4 more unlockable characters. A photo will be taken of the top 3 racers. What is the probability that all top three racers will only be unlockable characters?

Find the equation of a line in gradient intercept form that passes through (1,4) and has a gradient of - 2. Show working out ty; )

Is 5.8 greater than. 58

A drawing of a box has dimensions that are 2 inches, 3 inches, and 5 inches. If the drawing is on a 1: 8/3 scale, What are the dimensions of the actual box?

At present a man is 5 times as old as his son, in 13 years time he will be three times as old as his son. Find the man's present age?

Carol makes 9 1/2 cup of snack mix and puts 2/3 snack mix in bags, how many bags does she make

Is 7/13 equal to 8/14

You are purchasing 2 shirts at $10.00 (each) and 1 pair of jeans at $35.00 (each). You have a coupon for 10% off. How much is the total cost with the discount? $49.50 $5.50 $60.50 $55.00

21/-21. What is 21 divided by negative 21?