The Treasury bill rate is 4% and the market risk premium is 8%.

Project P with beta of 1.10 and Internal Rate of Return of 16%

Project Q with beta of 0.00 and Internal Rate of Return of 12%

Project R with beta of 2.00 and Internal Rate of Return of 20

Project S with beta of 0.50 and Internal Rate of Return of 13

Project T with betw of 1.60 and Internal Rate of Return of 22

a) What are the project cost of capital for new ventures with betas of 0.85 and 1.78?

b) Which if the capital investments shown above have positive (non-zero) NPV's