Need help
A circular pool of water is shrinking as it drains. This diagram shows the shrinkage.

A formula for the area, A, of the circular pool is given by the equation A=πr-32.
Which is a formula for r?

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.