Answer:
12
Step-by-step explanation:
Equation y=40x+420
plur in 900 to the y
900=40x+420
subtract
480=40x
divide
x=12
I might not be understanding what you mean but I think it is by counting 10s. 170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,410.
Answer:
Yes, I think it is
because the equation has a horizontal line
Answer:
18.37 is the answer so it should be 18.4
Step-by-step explanation: