Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). The native bird population in a city is decreasing at a rate of 10% per year. After 1 year, the population of native birds is 14,000.
Complete the recursively-defined function to describe this situation.
f(1)=___
f(n)=f(n-1)*___, for n ≥ 2
After 4 years, ___ birds will remain.