4-63: The cash flows have a present value equal to 0. compute the value of D in the diagram. diagram in picture.

4-77: A set of cash flows begins at 80,000 the first year, with an increase each year until n=10 years. if the interest rate is 5%, what is the present value when

a) the annual increase is $10,000

b) the annual increase is 15%

please no excel, must use the PV formula, and tell how the gradient was found!

4-63 The cash flows have a present value equal 0. Compute the value of D in the diagram. 1 300 200 0- 1- 2- 3- 4 - 8 6- 7 i = 10% D D D D