Drawing scale is 1.5 inches = 2 feet
So, first we convert the dimensions used in drawing to actual dimension using this scale.
1.5 inches = 2 feet
1 inch = 

 feet
⇒ 7.5 inches =

 = 10 feet
⇒ 10.5 inches = 

 = 14 feet
This means, the dimension of actual quilt are 10 feet by 14 feet. So the Area of the actual quilt will be:
Area = 10 x 14 = 140 feet²
So, area of actual quilt is 140 feet²