Answer:
1/2
Step-by-step explanation:
1:40 because if we think of this just like a fraction

that simplifys down to

and because fraction simplifications are similar (related to each other) we can concur that these would be too.
Enjoy!=)
Usually you are given more information about the rectangle such as distance of length in terms of width.
You know that the formula for perimeter is
P=2(l+w)
Substitute p and the other values to find width.
Hope I helped :)
1 because he HAD 5 and if he gave his friend 4 than he has 1 left, 5-4=1 my friend.