Which of the sets of ordered pairs represents a function?

A = { (3,-5), (4, 6), (-3, 9), (2,7) }

B = { (2,4), (-1, - 7), (5,6), (4,3) }

Should the rich have to pay a greater portion of their income in taxes than poor? why or why not?

The local movie theatre has $85 to purchase new movie posters that cost $14.65 each and frames that cost $11.75 each where x is the number of purchased movie posters and y is the number of purchased frames.

A snail moves 1/40 of a mile in 3/4 of an hour. If the snail continues at this pace, how far, in miles, does it move in one hour? The answer is. 03 or 1/30 but, Idk how to explain my answer.

What's the vertex of f (x) = (x-4) ^2+7

An open box is to be made from a flat square piece of material 16 inches in length and width by cutting equal squares of length x x from the corners and folding up the sides. Write the volume V V of the box as a function of x x.

Find the LCM of 8, 12, and 16. A. 48 B. 96 C. 192 D. 1536

Evaluate 6x - y if x=5 and y=8

Name two red lines in the diagram that appear to be perpendicular

If the cost is $50 and the selling price is $63 than what percent of increase

Debi walks laps around the mall for exercise during the winter months. The table represents the number of steps recorded on her pedometer as she walks laps around the mall one day.