The graph above gives the velocity, $v$, in ft/sec, of a car for $0\leq t\leq 8$, where $t$ is the time in seconds. Of the following, which is the best estimate of the distance traveled by the car from $t=0$ until the car comes to a complete stop?

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The distance traveled by the car is:

$$\int \limits_0^8 v(t)   dt$$

Estimate the area under the curve:

The shading above shows a sample estimation. Each rectange has an area of $10$, corresponding to $10$ feet.

With approximately $9$ rectangles, we get a distance traveled of $\boxed{ 90 \text{ ft}}$.