1. Suppose you are paying off credit card debt and simultaneously saving up for a down payment on a house. You have two credit cards with APRs of 15% and 18% and balances of $1,500 and $7,000, respectively. You would like to be able to purchase a house costing $400,000 within the next five years. You can earn a return of 10% on money you invest. a. How much do you need to invest per month to be able to make a down payment of 20% in five years? Build the amortization schedule for the savings. b. How much do you need to pay off of each credit card to have them paid off in five years? Build the amortization schedule for the credit cards. c. Suppose you have, as disposable income, $2,300 per month to devote to paying off credit card debt and/or investing towards the house. What is your best plan of action? How much sooner will you be able to purchase the house if you follow this plan (in other words, how much sooner will you have 20% of the house value)