After taking a dose of medication, the amount of medicine remaining in a person's bloodstream, in milligrams, after xx hours can be modeled by the function f, of, x, equals, 85, left bracket, 0, point, 9, 5, right bracket, to the power x , .f(x)=85(0.95)
x
. Find and interpret the given function values and determine an appropriate domain for the function.
Round your answers to the nearest hundredth.