please answer these questions ik the limit is one just in need of help

Question 4 (1 point) You want to have $2,700,000 saved by the time you retire which is in 45 years. You can invest your money in a portfolio that is estimated to earn 12% per year. You have no money saved today but would like to start investing starting at the end of this month. How much do you need to save each month? A/ Question 5 (1 point) You want to have $3,500,000 saved by the time you retire which is in 55 years. You can invest your money in a portfolio that is estimated to earn 8% per year. You have no money in the investment yet and would like to start investing today (make payments at beginning of month). How much do you need to save each month? A/ Question 6 (1 point) How much do you need to have invested today in total to have a portfolio that will pay you an annual payment (starting at the end of this year) of $50,000 for 25 years? Your portfolio will earn 5% interest each year and at the end of the 25 years, you will have no money remaining in the portfolio. AJ Question 7 (1 point) Your credit card has an EFFECTIVE rate of 32%. You can pay off your credit card debt in 14 months by paying $600 each month. What is the current balance on your credit card? AM