Answer:
15
Step-by-step explanation:
let's recall that the domain of a set is always the list of all x-coordinates in each pair.

Answer:
75%
Step-by-step explanation:
there is 3x+y because of the oranges and apples, there's 4 different fruits so we can say it's 4z. Then 100/4 which is 25, 25 is for oranges and 75 is for apples