we have that
the scale is
1 in=2 ft
the area of the bed in the drawing is
(2 1/8)*(3 1/4)
Convert to an improper fraction
2 1/8=2+1/8=17/8 in
3 1/4=3+1/4=13/4 in
Convert in to ft according the scale
Remember that
1 in=2 ft
so
17/8 in=(17/8)*2=17/4 ft
13/4 in=(13/4)*2=13/2 ft
Multiply to obtain the actual area
(17/4)*(13/2)=221/8 ft^2
Convert to mixed number
221/8=216/8+5/8=27+5/8=27 5/8 ft^2
answer is 27 5/8 ft^2
option D