Suppose that you are making monthly payments on your home mortgage $(5\%$ Annual Percentage Yield or APY$),$ car loan $(7\%$ APY$),$ home improvement loan $(10\%$ APY$),$ and charge card accounts $(19\%$ APY$).$

Immediately after getting a $$100$ monthly raise, a mutual fund broker tries to sell you some investment funds with a guaranteed return of $10\%$ per year. Assuming that the current balance on all payment accounts is over $$1200$ each, and that your only other investment alternative is a savings account at a $4\%$ annual interest rate, what is the most cost$-$effective way of using your raise? Explain your decision and you must show the financial analysis for each payment alternative to support that conclusion.