Chapter 4.4, Problem 21E

To determine

(a)

To find:

The exponential model for $N$ as a function of $s$.

To determine

(b)

To find:

The value of $N\left(70\right)$ and its meaning in practical terms.

To determine

(c)

To find:

The effect in number of people injured per $100$ accident-involved vehicles with an increase in $1\text{mile}\text{per}\text{hour}$ of speed.