Suppose that an object moves along the [math]-axis so that its location is [math] at time [math]. (Here [math] is in meters and [math] is in seconds.)

(A) Find the average velocity (the average rate of change of [math] with respect to [math]) for [math] changing from 2 to 7 seconds. Don't forget to include units in all your answers.
Average velocity =

(B) Find the average velocity for [math] changing from [math] to [math] seconds.
Average velocity =

(C) Find the instantaneous velocity at [math] seconds .
Instantaneous velocity =