u gotta add them since they asked about their cost in all
Answer:
(-4,6)
Step-by-step explanation
y = x + 4= −2x − 2
0=x+4
-4=x
y=-2(-4)-2
y=8-2
y=6
a) x=7
b) x=4
c) x= 1/9
I hope this helps! Do you need more help?
y =16
I have solved it . It's in the picture above. Hope it helps