The given equation relates the distance $d$, in inches, of an object …

The given equation relates the distance

d

, in inches, of an object from its starting position to the time

t

, in seconds, since the object started moving. What is the rate of change of the object's distance from its starting position over time?

20 t

inches per second

20

inches per second

\frac{1}{20}

inches per second

\frac{1}{20 t}

inches per second

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