Do the offered pairs below represent a function, a relation, both, or neither?

(-5,1)
(2,-13)
(-5,-23)
(9,-27)

A. relation only
B. function only
C. neither a relation nor a function
D. both a relation and a function

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions

Which will form a composite function?

Katie wants to collect over 100 seashells. she already has 34 seashells in her collection. each day, she finds 12 more seashells on the beach. katie can use fractions of days to find seashells. write an inequality to determine the number of days, dd, it will take katie to collect over 100 seashells.