C
By subtracting 18 to both sides you are separating the 3x because you are not ready to isolate the variable (x) in step 1
It would be 14 for the perimeter
3.341 to the nearest tenth is 3.3
See the attachment °_° I hope it helps :-)
Answer:

Step-by-step explanation:
Let
x -----> the number of annual visitors pass sold
we know that
To find out the number of annual visitor passes sold, divide the total amount raised by the cost of a pass.
so
The linear equation that represent this problem is

Solve for x
Divide by 12.50 both sides
