help please with these three questions

Question 8 (1 point) Sylvia wants to buy a car and feels that she can afford payments of $340 per month (month-end payments) for five years. Using an interest rate of j12=4.8%, what is the most expensive car that she can buy? Your Answer: Answer Question 9 (1 point) Spencer deposited $350 at the end of each month into a savings account for 10 years. The account earned 7.00% compounded monthly (112) for the first 6 years and 6% compounded monthly (j12) for the remaining 4 years. Calculate the total value of the account after 10 years. Your Answer: Question 10 (1 point) Carol is selling her small business and has just received an offer of $35,000 now plus year-end payments of $10,000 for each of the next 5 years. Assuming an interest rate of 6.99% compounded annually (j1), calculate the value of the offer in today's dollars. Your