Evaluate the expression using substitution ( m=3, y =-5)

5m + 3y/5 + 4( m-y)

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)