Answer:
C: x=50
Step-by-step explanation:
x=50
x in (-oo:+oo)
(2/5)*x+10 = 30 // - 30
(2/5)*x-30+10 = 0
2/5*x-20 = 0 // + 20
2/5*x = 20 // : 2/5
x = 20/2/5
x = 50
(2,5)
There you go.........
y=mx+b
that is the equation
the 4th one
i'm pretty sure that's right
