Emma is trying to decide whether to buy a new laptop. as a student, she has a budget and wants to make sure this is the right financial decision. which question should she ask herself in determining the opportunity cost of this purchase?

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )