Answer:
B is your answer to this problem
Step-by-step explanation:
We have a deposit of $2000 into an account that pays 6% compounded monthly, after a year we will have:

The effective annual yield (EAY) will be:

The EAY is 101.22%
Length:
60% of 6 is 3.6
3.6 x 6 = 21.6
Width:
150% of 5 is 7.5
7.5 x 5 = 37.5
So her mothers garden should be 21.6 feet in length, and 37.5 feet in width.