please answer a,b,c,d,e,f,g thank you!

Monthly, how much will you need to save per month in order to reach your retirement goal? [Note: you are saving from age 35 to 65, and in retirement you no longer make deposits but live only off of your savings, which still earns interest at the same rate] (last question next page) Five years ago you took out a 30-year mortgage with a quoted interest rate of 6.5% per year compounded semi-annually for $200, 000. You decide to make monthly payments. What is the amount of your mortgage payment? What is the outstanding balance on your loan after the first 5 years? How much interest have you paid over the first 5 years? Now you are able to refinance the mortgage today at a quoted rate of 4.25% per year compounded semi-annually If you keep your monthly payment the same as in a), how long will it take you to pay off your mortgage? How much interest will you pay over the remaining years of your mortgage now? Instead you decide to make bi-weekly payments (one payment every two weeks) that are exactly half of your monthly payment from ). How long will it take you to pay off your mortgage? How much interest will you pay over the remaining years of your mortgage now