Explain what I need to do and help me answer it pls??

(1,-3)so basically you see how (3,3) and (3,-3) are the same numbers but switched negatives I did the same for (-1,-3) to (1,-3)

Step-by-step explanation

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 : )