Which equation shoes how the properties of numbers extend to negative whole numbers by commutative property of addition A) - 2+4=4 + (-2) B) - 2 (4) = 4 (-2). C) (-2+4) + 3=-2 + (4+3. D) - 2 (4+3) = (2*4) + (-2*3)

Speakers cost $22 and songs cost $1.25 each. The sales tax rate is 7.5%. The expression 0.075 (22 + 1.25s) can be used to determine the entire purchase of speakers and songs. Expand the expression and round to the hundredth.

Which of the following are like terms in this expression? 12a-7+7a+12b

Factor the expression xsquared-6x+9

Krutika, David and Mark share some sweets in the ratio 3:1:5. Krutika gets 33 sweets. How many more sweets does mark get over david?

If tan 0 = 12/5 and cos theta, what is sin theta

Use compatible numbers to find two estimates 33 divided by 2242

What is 7,058 divided by 9

78 students are going to be divided into 24 groups and the number of each group member will be either 4 or 2. How many groups of 2 will there be? Let x be the number of groups of 2 and let y be the number of groups of 4

Find the value of a - 8 when a = 18

write the number 700000 + 400000 + 10000