The population of Americans age 55 and older as a percentage ofthe total population is approximated by the function f(t) =10.72(0.9t + 10)0.3 (0 ? t ? 20) where t is measured in years, witht = 0 corresponding to the year 2000.†(Round your answers to onedecimal place.) At what rate was the percentage of Americans age 55and older changing at the beginning of 2003? % per year At whatrate will the percentage of Americans age 55 and older be changingin 2018? % per year What will be the percentage of the populationof Americans age 55 and older in 2018? %
