Elvis Presley is an extremely popular singer. Although he passed away in 1977, many of his fans continue to pay tribute by dressing like Elvis and singing his songs.
The number of Elvis impersonators, N(t), for t number of years, can be modelled by the
function
N(t) = 170(1.31)^t
1. Write down the number of Elvis impersonators in 1977.
2. What is the percent rate of increase.
3. Calculate the number of Elvis impersonators when t=70; is this a reasonable prediction? Why or why not?