Suppose that the local sales tax rate is 6% and you purchase a car for $16,900. a. How much tax is paid? b. What is the car's total cost? a. The amount of tax paid is $ b. The total cost is $ The principal P is borrowed at a simple interest rate r for a period of time t. Find the simple interest owed for the use of the money. Assume 365 days in a year. P = $8000, r = 4.5%, t = 9 months The simple interest owed for the use of the money is $ (Do not round until the final answer. Then round to the nearest cent as needed.) How much money should be deposited today in an account that earns 7% compounded semiannually so that it will accumulate to $13,000 in three years? Click the icon to view some finance formulas. The amount of money that should be deposited is $ (Round up to the nearest cent.) a. Use the appropriate formula to find the value of the annuity. b. Find the interest. Periodic Deposit $9000 at the end of each year Time Rate 4.5% compounded annually 30 years Click the icon to view some finance formulas. a. The value of the annuity is $ (Do not round until the final answer. Then round to the nearest dollar as needed.) b. The interest is $ (Use the answer from part (a) to find this answer. Round to the nearest dollar as needed.) a. Use the appropriate formula to determine the periodic deposit. b. How much of the financial goal comes from deposits and how much comes from interest? Periodic Deposit Rate $? at the end of every three 2.5% compounded quarterly Time 6 years Financial Goal $30,000 months Click the icon to view some finance formulas. a. The periodic deposit is $ (Do not round until the final answer. Then round up to the nearest dollar as needed.) b. $ of the $30,000 comes from deposits and $ comes from interest. (Use the answer from part (a) to find these answers. Round to the nearest dollar as needed.)