Banele had a taxable estate of $16.6 million when they died this year. Calculate the amount of estate tax due (if any) under the following alternatives. Note: Enter your answers in dollars and not in millions of dollars. a. Banele's prior taxable gifts consist of a taxable gift of $1 million in 2005 . Banele had a taxable estate of $16.6 million when they died this year. Calculate the amount of estate tax due (if any) under the following alternatives. Note: Enter your answers in dollars and not in millions of dollars. b. Banele's prior taxable gifts consist of a taxable gift of $1.5 million in 2005 . Banele had a taxable estate of $16.6 million when they died this year. Calculate the amount of estate tax due (if any) under the following alternatives. Note: Enter your answers in dollars and not in millions of dollars. c. Banele made a $1 million taxable gift in the year prior to their death