a. an=3an-1+1,ao=1 b. At the beginning of year 1, the population of the country of Freedonia has 3450 people. Each year, the population grows in two ways. One is through birth rates: each year, the number of newborns is 5% of the population at the beginning of the year. The second way the population grows in through immigration: the country allows exactly 25 people into the country each year (and that's how many actually enter the country each year). No one dies in Freedonia, and no one leaves. Write and solve a recurrence equation (with an initial condition) that represents the population of Freedonia at the beginning of year n