Also find b

After a long study, tree scientists conclude that a eucalyptus tree will grow at the rate of 0.5 + 6 / (t + 3) feet per year, where t is the time (in years). (a) Find the number of feet that the tree will grow in the second year. (b) Find the number of feet the tree will grow in the third year. (a) The total number of feet grown during the second year is Ift (Round to three decimal places as needed.)