D, it’s a function because the Y and X values have its own numbers , and vertical are functions . Horizontal is not a function
9 pairs = 18 people
24 - 18 = 6
6 divided by 2 = 3 pairs
3 magnets for 3 pairs is 9 magnets.
Answer is on the attachment. Brainlist pls.
Step-by-step explanation: