In each of the following problems, find an exponential function of the form
Personal Consumption Expenditures Thetotal amount of expenditures in the United States on video and audio equipment, computers, and related services was approximately $9.6 billion in 1990 and $109.2 billion in 2015. (Data from: The Federal Reserve Bank of St. Louis.)
Let
According to the model, what were the expenditures in 2014?
If the model remains accurate, estimate the expenditures for 2020.
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