PLEASE HELP ILL GIVE BRAINLIEST Which set of ordered pairs represents a function?

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics