The sun is shining and a spherical snowball of volume 210 ft3 is melting at a rate of 14 cubic feet per hour. As it melts, it remains spherical. At what rate is the radius changing after 3 hours?

I posted this question before and when i went back and did the math i got

0.09508332786
but it says its wrong

1 answer

opps never mind i got it ... its supposed to be negative that number