Please answer with formulas in the beginning

1. A woman currently has $50,000 saved in an account earning 6.5% per year. She plans to retire in 30 years. In addition, she is also currently saving $6000 per year in an account earning 7% per year. She expects to live 25 years after retirement, and will keep all of her monies in an account earning 3.5% per year. How much money will she have to spend each year during retirement?

2. You just won a lottery that promises to pay the winner $250,000 per year for 30 years. If the current interest rate is 9%, what is that lottery win worth to you today?

3. You are considering buying a house with a $200,000 loan. The loan is for 30 years, payments are to be made monthly, and the interest rate is 7.2%. What is your monthly payment?

4. The APY of a credit card is 62% per year. Payments are monthly. What is the APR of this card?

5. The APR of a credit card is 46%. The payments are to be made monthly. What is the APY of this loan?

6. You can afford monthly payments of $400 per month. If you are financing a car at 10% APR and 60 months, how much car can you afford?