A circle is inscribed in a square. The circumference of the circle is increasing at a constant rate of 6 in/sec. As the circle expands, the square expands to keep the circle inscribed. At what rate is the perimeter of the square increasing?

A. 12/pi in/sec
B. 18/pi in/sec
C. 24 in/sec
D. 24/pi in/sec
E. 36 in/sec

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.