Answer:
[tex]16\ ft[/tex]
Step-by-step explanation:
To find how much weatherstripping will Mike need, calculate the perimeter of the window
so
The perimeter of a rectangular shape is equal to
[tex]P=2(b+h)[/tex]
we have that
[tex]b=3.5\ ft, h=4.5\ ft[/tex]
substitute in the formula
[tex]P=2(3.5+4.5)=16\ ft[/tex]
