a) How many fish were really put in pond? Formula and answer: P(t)=d/1+ke^-ct=
P(0)=1000/1+9e^-0.2(0).
d=1000, k=9, c=0.2, and t is estimated in years.
b) Determine fish population after 10, 20, and 30 years and round to nearest whole number.
P(10)=1000/1+9e^-0.2(10)
P(20)=1000/1+9e^-0.2(20)
P(30)=1000/1+9e^-0.2(30)