The total expenditures on benefits (in billions of dollars) can be approximated by the function h(x) = 23.6(1.09)^x, where x = 5 corresponds to the year 1995. (a) What was the amount for total expenditures in 2012? (b) What was the first full year in which expenditures exceeded $109 billion? (a) The amount for total expenditures in 2012 was about $ billion. (Round to the nearest tenth as needed.) (b) The first full year in which expenditures exceeded $109 billion was (Type a whole number.)
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