Astandard letter-sized piece of paper has a length and width of 8.5 inches by 11 inches.
b. if the paper were folded completely in half, what would be the area of the resulting rectangle?

Area of the resulting rectangle = 23.375 inch²

Step-by-step explanation:

After 1 fold width or length reduces to half.

Area = Length x width

So after 1 fold area will reduce to half.

So we have

Initial area = 8.5 x 11 = 93.5 inch²

Here the paper were folded completely in half, length is reduced to half and width reduced to half, that is

Number of folds = 2

Area after 2 folds = 23.375 inch²

Area of the resulting rectangle = 23.375 inch²