Please help me.
http://prnt.sc/cvgyme

Question

Please help me. 
http://prnt.sc/cvgyme

mathmale · Answer

You can read off the length and the width of this rectangle from the diagram.  The formula for Perimeter, P, is P = 2W + 2L.

haleyright · Answer

How would I solve the problem? Step by step?

mathmale · Answer

Look at the diagram.  Can you read off the length of the rectangle?  What is the distance from x=-6 to x=6?

mathmale · Answer

I did give you some instructions, and would hope that you'd try to use them.  L represents the length of the rectangle, and W the width.  The perimeter is P = 2W + 2L.

haleyright · Answer

Ok, give me a sec to try to put it all together please. ;--;

mathmale · Answer

L=?
W=?
P=2L+2W=?

haleyright · Answer

W= -L + P/2 ?

mathmale · Answer

Haley, the length of the rectangle is 16 units.  That would be from x=-8 to x=+8.
Look at the diagram again.  What is the width?  count the number of units from top to bottom.     W=?                  L=16 units

haleyright · Answer

Ok. ._.