Question

Which expression should Jenna use in the process

Answer 1

To solve this problem you must divide the area of the floor by the area of the sticker, then you must apply the formula for calculate the area of a rectangle, which is:
 A=lw
 Where l is the length and w is the width.
 Therefore, you have:
 A=20x10/2x1
 A=200/2
 A=2x10^2/2x10^0
 The answer is: 2x10^2/2x10^0