The answer is B. When you cross multiply it, it doesn't make sense like the rest of them;
A. 1x24= 24
4x6=24
24=24
B. 4x10=40
7x7=49
40 ≠ 49
C. 16x3=48
24x2=48
48=48
D. 36x5=180
10x18=180
180=180
If Shannon's garden is in a rectangle, the area of a rectangle is (length x width). If it's a square, then it would simply be (length x length) ... or length squared.
I think b is the correct answer or not