Which set of ordered pairs is a function?

(5,5), (-5,5)

(1, 1), (1, - 1)

(-2, - 2), (-2, 2)

(0, 0), (0, 3)

or none of these?

Rolex worked 40 hours last week I had $74 deducted from his earnings for taxes. if he had 286 left after the deduction, how much does Rolex earn per hour?

How do i use the fraction in fraction tiles 7/8-1/2

Mike saves $42 $ 42 a week for 7 7 weeks. During his 8 8 - day vacation, he plans to spend $8.25 $ 8. 25 each day for snacks. Which expression shows how much money he will have left?

If I have a car that is 40 meters long and my garage is 500 centimeters how much extra length would there be if I parked my car in the garage?

Which equation represents a line that passes through (4,1/3) and has a slope of ?

Four consecutive even integers add up to 60. What is the smallest of the four numbers?

Keri walks her dog every morning the length of the walk is 0.55 km on each weekday on each weekend day the walk is 1.4 times as long as a walk on a weekday how many kilometers does keri walk in one week

What is 1 7/9 - 4/9? Express the answer in simplest form What is? Express the answer in simplest form what is 2 5/12 - (-2 1/6)

2x+5x= I think the answer is - 1 can someone tell me if it's right or not?

If 8a + 7b + c = 9, what is - 6c - 48a - 42b