(5 points) A population P obeys the logistic model. It satisfies the equation
(dP)/(dt)=(7)/(1300)P(13-P) for P>0.
(a) The population is increasing when
P>P(0)=4P(65)P(65)=
(b) The population is decreasing when P>
(c) Assume that P(0)=4. Find P(65).
P(65)=???