Karen's penny bank is 1/3 full. after she removes 240 pennies, it is 1/9 full. how many pennies can karen's bank hold?

the answer is 99.

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.