Bridgetts son, Clyde, is $12,000 in arrears on his residential mortgage payments. Of the $12,000, $7,500 represents interest and $4,500 represents principal.

1. If Bridgett pays the $12,000 to the lender, how much can she deduct? How much can Clyde deduct?

2. If Bridgett pays the $7,500 of interest to the lender and lends or gives $4,500 to Clyde, who pays the $4,500 of principal, how much can Bridgett deduct? How much can Clyde deduct?

3. If Bridgett gives or lends the $12,000 to Clyde who pays the lender, how much can he deduct? How much can Bridgett deduct?

4. Advise Bridgett and Clyde on how the payment should be made.