Suppose an arrow is shot upward on the moon with a velocity of 40 m/s, then its height in meters after t seconds is given by h(t) = 40t - 0.83t. Find the average velocity over the given time intervals. (Round all answers to four decimal places as needed.) [7, 8]: meters/sec [7, 7.5]: meters/sec [7, 7.1]: meters/sec [7, 7.01]: meters /sec [7, 7.001]: meters/ sec b) Estimate the instantaneous rate of change at t = 7 seconds using the values from above to the hundredths place