Please help answer these!

FUTURE VALUE OF AN ANNUITY Find the future values of these ordinary annuities compounding occurs once a year a $400 per year for 10 years at 10% b. $200 per year for 5 years at 5% c $400 per year for 5 years at 0". d. Rework Parts a, b, and c assuming they are annuities due. 5 PRESENT VALUE OF AN ANNUITY Find the present values of these ordinary annuities. Discounting occurs once a year. a. $400 per year for 10 years at 10% b. $200 per year for 5 years at 5% C. $400 per year for 5 years at 0% d. Rework Parts a, b, and c assuming they are annuities due. PRESENT VALUE OF A PERPETUITY What is the present value of a $100 perpetuity the Interest rate is 7%? If interest rates doubled to 14%, what would its present value be ? EFFECTIVE INTEREST RATE You borrow $85,000; the annual loan payments are $8,27:9 for 30 years. What interest rate are you being charged? UNEVEN CASH FLOW STREAM a. Find the present values of the following cash flow streams at an 8% discount rate