Compute the present value of following cash flows, rounding to the nearest dollar:
a. A single cash inflow of $12,000 in five years, discounted at the 12% rate of return.
b. An annual receipt of $16,000 over the next 12 years, discounted at the 14% rate of return.
c. A single receipt of $15,000 at the end of Year 1 followed by single receipt of $10,000 at the end of Year 3. The company has a 10% rate of return.
d. An annual receipt of $8,000 for three years followed by single receipt of $10,000 at the end of Year 4. The company has a 16% rate of return.