Enter the number that belongs in the green box

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

Acompany wants to reduce the dimensions of its logo by one fourth to use on business cards. if the area of the original logo is 4 square inches, what is the area of the logo that will be used on the business cards?

Consider the set of all four-digit positive integers less than 2000 whose digits have a sum of 24. what is the median of this set of integers?