the original number
there are
and many other etc.....
Answer:
-3x+36
Step-by-step explanation:
the slope is -3, so just add an x.
the y intercept is 36
put them a together and you get -3x+36
c(X)=R(X)
125x+18000=215x
18000=215x-125x
18000=90x (divede both sides by 90)
X=200