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A particular country's exports of goods are increasing exponentially. The value of the exports, t years after 2005, can be approximated by V(t) = 1.6 e 0'04\" where t= 0 corresponds to 2005 and V is in billions of dollars. a) Estimate the value of the country's exports in 2005 and 2013. b) What is the doubling time for the value of the country's exports? ._E__H_.__ a) The value of the country's exports in 2005 is SSE] billion. (Simplify your answer. Round to the nearest tenth as needed. Do not include the $ symbol in your answer.) The value of the country's exports in 2013 is $D billion. (Simplify your answer. Round to the nearest tenth as needed. Do not include the $ symbol in your answer.) b) The doubling time is approximately El years. (Simplify your answer. Round to the nearest integer as needed.)