Payback, NPV$,$ and MIRR

produce the following after$-$tax cash flows $($in millions of dollars$)$:

a$.$ What is the regular payback period for each of the projects? Round your answers to two decimal places.

Project A:

years

Project B:

years

b$.$ What is the discounted payback period for each of the projects? Do not round intermediate calculations. Round your answers to two decimal places.

Project A:

years

Project B:

years

c$.$ If the two projects are independent and the cost of capital is $10\%,$ which project or projects should the firm undertake?

The firm should undertake

d$.$ If the two projects are mutually exclusive and the cost of capital is $5\%,$ which project should the firm undertake?

The firm should undertake

e$.$ If the two projects are mutually exclusive and the cost of capital is $15\%,$ which project should the firm undertake?

The firm should undertake

f$.$ What is the crossover rate? Round your answer to two decimal places.

$\%$

Project A:

$\%$

Project B:

$\%$