The decimal .53 has the 3 in the hundredths place, so the fraction that this was originally is

. When you divide 53 by 100 on your calculator, you will get backk .53
The lateral area that Rachel needs to cover is 21 inches.
It is a square, so all the sides are equal in length.
√196 = 14.
The sides are 14 by 14 meters.