1. Which of the following systems is (2, -3) a solution? (Choose all that apply)
a. x+y = -1
b. 2x-y=7
c. 10x + 2y = 28
3x + y = 3
5x + y = 14
6x - 3y = 21
d. 9x - 5y = 33
7x + 2y = 8

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 : )

answer: b.

step-by-step explanation:

the y coordinate for point b is 0, and answer b is the only one with that y coordinate.