You have just sold your house for $1,000,000 in cash. Your mortgage was originally a 30-year mortgage with monthly payments and an initial balance of $800,000.The mortgage is currently exactly 18.5 years old, and you have just made a payment. If the interest rate on the mortgage is 7.75%(APR with semi-annual compounding), how much cash will you have from the sale once you pay off the mortgage? What is the discount rate for the mortgage?