An investment pays $500 per year for the first 4 years, $400 per year for the next 3 years, and $700 per year the following 8 years (all payments are at the end of each year). If the discount rate is 10.00% compounding quarterly, what is the fair price of this investment? (On January 1, 2012, your brother's business obtained a 30-year amortized mortgage loan for $250,000 at a nominal annual rate of 4.35%, with 360 end-of-month payments. The firm can deduct the interest paid for tax purposes. What will the interest deduction in 2016 tax return?