Loans. Suppose, by the time you have finished school, you will have accumulated

$120,000 in debt, from two different sources. First, you have student loans of $85,000. These loans will carry a rate of 3.9% APR, compounded monthly, over the next 20 years. Second, you have $35,000 in credit card debt that carries a rate of 9.76%, compounded monthly, over the next 20 years. Now, you have just been offered a deal by a debt company to consolidate your loans into one with an interest rate of 6%, compounded monthly, for 20 years. Given this, how much would you save, or cost, yourself over the entire time period, by doing the consolidation? Show by comparing the total costs (interest and principal) of the loans both separately and together (in consolidation).