Find in term of pi, the volume of the water

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1