The Hershey Company is the largest US producer of chocolate. In 2011, annual net sales were 6.1 billion dollars and were increasing at a continuous rate of 7% per year (a) Write a formula for annual net sales, S, as a function of time, t, in years since 2011.

S=___________________ billion.

(b) Estimate annual net sales in 2015. Round your answer to two decimal places.

Annual net sales will be approximately _________ billion dollars in 2015.

(c) Use a graph to estimate the year in which annual net sales are expected to pass 10 billion dollars and check your estimate using logarithms. Round the exact value of t to 2 decimal places.

Annual net sales are predicted to pass 10 billion dollars when t=