K The total revenue for a company (in billions of dollars) can be approximated by the function f(x) = 41.7 0 08/*, where x = 7 corresponds to the year 2007 (a) What was the total revenue in 2016? (b) What was the first full year in which revenue exceeded $144 billion? (a) The total revenue in 2016 was approximately $ 167.75 billion. (Type an integer or decimal rounded to the nearest hundredth as needed.) (b) The first full year in which revenue exceeded $144 billion was 2015 (Type a whole number.)