Boyd has the following utility function: U=100BC, where B represents books and C represents audio CD s Bundle A contains 6 unit(s) of good B and 4 units of good C. Bundle E contains 7 units of good B and 49 units of good C. Which bundle does he prefer? (enter an A,E, or I if you are indifferent). His total level of utility in this case is (round your answer to one decimal place)