The Treasury bill rate is 4% and the market risk premium is 7%.

Project	Beta			Internal Rate of Return, %
P		0.85		18
Q		0.00		14
R		2.00		18
S		0.25		15
T		1.50		20

a. What are the project costs of capital for new ventures with betas of 0.60 and 1.57? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.)

b. Which of the capital investments shown above have positive (non-zero) NPV's? (You may select more than one answer. )