What related number sentence shows the commutative property addition 3+9=12

Convert 0.00049 to scientific notation A. 4. 9. 10^3 B. 4. 9. 10^4 C. 4. 9. 10^-3 D. 4. 9. 10^-4

The sale tax on the purchase of a refrigerator that cost 695 is 7 percent. What is the amount of sales tax

A 68 year old retiree has a pension savings of $40,000 , a 401 k of $63,000 , and an IRA account of $59,000 . Before 2008 , he had 2% more cash in the pension, 12% more in the IRA, and 1% more in the 401 k.

Find the surface area of a sphere with radius r=5 in.

A bag of taffy contains three flavors: chocolate, maple, and cherry. There is an equal number of each flavor. What is the chance of reaching into the bag and getting a cherry-flavored piece? Show your answer as a fraction.

What is the value of x in the equation - --? y = 30, when y = 15?

What is the combined weight of the 1/4 - lb bags?

What is the amplitude of g (x) = 10 cos (6x - 1) - 4?

Which expressions represent the difference of exactly two expressions? Choose 3 answers: Choose 3 answers: (Choice a. A 6 (x+7) - 26 (x+7) - 26 (x+7) - 26, left parenthesis, x, plus, 7, right parenthesis, minus, 2 (Choice b.

Find the number of positive integers n is less than or equal to 1000 such that 15n is a perfect square.