Since 2006, the amount of money spent at restaurants in a certain country has decreased at a rate of 4% each year. In 2006, about 5740 billion was spent at restaurants if the trend continues, about how much will be spent at restaurants in 2016?
Write an exponential equation and use your equation to determine your final answer. In order to earn full credit, you need to write the equation and show your work in the Show Work area of this problem.
About $ billion will be spent at restaurants in 2016 if the trend continues.
(Round to the nearest whole number as needed)