only need questions 5-10

please help

Assume the risk on all propects are equal and your required rate of retum is 15%. Which projects would you accept? Assume the risk on at propects are equal and your required rate of rotum is 8% Which projects would you accept? Assume the rak on al projects are equal and your required rate of retum is ax Assume these propects are mutualy exclusive Which propect would you accept at Bs then at 10% ? Assume the projects " A ", " B " and " C " require the following rates to adjust for their riskiness. 1A=20%;"B=15% and C=13%. Using the risk rate required for each independent operation, AND these are mutually exclusive projects, which project, if any, would be selected as best? In looking at IRR, which project has the highest guaranteed retum on investment