Write 3 x 10^6 as an ordinary number

How is working backward similar to solving an equation?

Evaluate the expression. (9 + 5)(3 + 2)0

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)