The total expenditures on benefits (in billions of dollars) can be approximated by the function h(x) = 23.4(1.08)", where x = 5 corresponds to the year 1995 (a) What was the amount for total expenditures in 2016? (b) What was the first full year in which expenditures exceeded $106 billion? -.. (a) The amount for total expenditures in 2016 was about $ billion. (Round to the nearest tenth as needed.) (b) The first full year in which expenditures exceeded $106 billion was (Type a whole number.)