Is the following relation a function?

107

Yes

No

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.

A store bought a leaf blower at a cost of $48.50 and marked it up 100%. Hugo bought it and paid 6% sales tax. What was his total cost?

A standard brick is 3.625 inches wide, 2.25 inches high, and 7.625 inches long. How many bricks could be in a pallet of bricks that measures 4 feet on all sides? (One cubic foot is 12*12*12 cubic inches.) A. 1,757 B. 1,974 C. 1,709 D. 1,778

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?