What is expanded notation math.

An astronaut drops a rock into a crater on the moon. the distance, d(t), in meters, the rock travels after t seconds can be modeled by the function d(t)0.82. what is the average speed, in meters per second, of the rock between 5 and 10 seconds after it was dropped?

40 describe the outliers from the scatter plot.

(x-5)1/2+5=2 what is possible solution of this equation