Step-by-step explanation:
We know to find the area of a rectangle we need to multiply the length times the height.
In other words,
[tex]a = l \times w[/tex]
We know our length is 75 and our height is 55, so lets multiply it.
[tex]75 \times 55 = 4125[/tex]
So our final answer is:
4125 sq. ft
:)