50 dollars per month. It says "after x months" -50x is the variable thats changes.
For example: if the word problem were simply "4 divided by 2", the fraction would be a 4 with a line underneath and the 2 underneath that.
I hope I made this possible to understand... let me know if you were referring to something else!
I assume the rug is rectangle.
The area of rectangle is width (W) multiply by hight (H)

The rug is

meters wide
Answer: (x+1)(x+2)
step by step explanation:
83-63=20
So your answer is 20