Amount of water in the swimming pool​

Which of the functions graphed below has a removable discontinuity?

Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x