She would spend $16.11 dollars on her new garden.
Answer:
A
Step-by-step explanation:
Find the ratio of the area to the square radius for each circle.
#14 is 4
#15 is 11 and
#16 is adding 3
Set it up as proportion. Corresponding sides matter. I am going to go from the one on the left to the one on the right.

. Cross multiply to get 96=12x-12. 108 = 12x and x = 9