Is this relation a function?

(0,1), (5,6), (7,9)

Which ratio forms a proportion with 7/14 a) 5/12 b) 2/5 c) 4/9 d) 3/6

A special industrial battery must have a life of at least 400 hours. A hypothesis test is to be conducted with a 0.02 level of significance.

Jin ran 15.2 miles over the weekend he ran 6.75 miles on saturday how Man y miles did he Rin on sunday

A credit card customer owes $325.60 they charge another purchase of $45.20. how much money does the customer owe?

Eric has challenged himself to walk 24,000 steps in 4 days. If Eric walks the same number of steps each day, which function represents the number of steps Eric still needs to walk to reach his goal with respect to the number of days since he started

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.