Hanse, Incorporated, has the following two mutually exclusive projects available.

a$.$ What is the crossover rate for these two projects?

Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$

b$.$ What is the NPV of each project at the crossover rate?

Note: Do not round intermediate calculations and round your answers to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$