Approx. 3 1/3 cups. 1 1/2 dozen equals 18 cookies. 90/18=5 . Then you multiply 5 by .666(rep) and it equals =3.3333333(rep) or approx. 3 1/3 cups of sugar.
The answer is 290. First calculate the area of the rectangle part on the bottom. area=20*9=180 square yards. Then calculate the area of the triangle on the top. Base length is 20, while the height is 20-9=11, so the area is 20*11/2=110. 180+110=290 square yards in total.
