In 2010 Casey made a taxable gift of $6.0 million to both Stephanie and Linda (a total of $12.0 million in taxable gifts). Calculate the amount of gift tax due this year and Caseys unused exemption equivalent under the following alternatives. (Refer to Exhibit 25-1 and Exhibit 25-2.) (Enter your answers in dollars, not millions of dollars. Leave no answer blank. Enter zero if applicable.) c. This year Casey made a gift worth $16.0 million to Stephanie. Casey is married to Helen in a common-law state, and the 2010 gift was the only other taxable gift he or Helen has ever made. Casey and Helen elect to gift split.