The Pacific halibut fishery has been modeled by the differential equation:

dy/dt=ky(1-(y/K) where y(t) is the biomass (the total mass of the members of the population) in kilograms at time t(measured in years), the carrying capacity is estimated to be K=8 x 10^7 kg, and k= 0.71 per year.

a) if y(0)=2 x 10^7 kg, find the biomass a year later.

b) How long will it take for the biomass to reach 4 x 10^7 kg?

HELPP!!