Answer:
Each side is 4.5 cm
Step-by-step explanation:

To find the perimeter of a square you add all the sides.
But to find the side length you do the opposite. Which is the equation above.
Hope this helps : )
6
y= the t intercept which is 1
Answer:
the answer is the First option.
If you want the expression, the expression would be:
3.5x+50