The answer is:A = 231e^(.0010776*12) = 234 million in 2003
k=(In(233/231))/(8)
<span>k=1.00865/8 <===== you used the ratio of 233/321, not the natural log of the ratio. </span>
<span>233/231 = 1.00865 </span>
<span>ln(233/231) = ln(1.00865) = 0.0086207 </span>
<span>k = 0.0086207/8 = 0.0010776 </span>
the circumference of a circle with the radius being 12.5 is C=78.54
Aloha there! :) The answer to your question is 113.04 sq inches.
Hope I helped! =D
