The rate, dy/dt, at which ice is forming on a pond is proportional to the square root of t. Let y be the thickness of the ice in inches at time t measured in hours since the ice started forming.
(a) Write the differential equation. Use k > 0 as the proportionality constant.
(b) Solve the differential equation.
(c) If the thickness of the ice is 3 inches after 9 hours, what is the value of k?
a little help with these bad frickin johnnys...thanks