R = rate
A = P(1-r)^t
A^t = P(1-r)
A^t/P = 1-r
(A^t/P)-1 = -r
r = -((A^t/P)-1)
The formula of an area of a circle:

r - a radius
We have r = 14m. Substitute:

If you want an approximate area, you can accept 
Then:

Answer:
i sowwy
Step-by-step explanation:
7.96 / 6 = 1.33 <== unit rate
The answer is 2500 milligrams