Chapter 6.5, Problem 3E

To determine

(a)

To plot:

The graph of $\frac{dN}{dt}$ versus $N$ and the equilibrium solutions.

To determine

(b)

To sketch:

The equilibrium solutions and graph of $N$ versus $t$.

To determine

(c)

To find:

The starting value of $N$ to which $N=6.21/\left(0.035+{0.45}^t\right)$ corresponds.