A risky asset P has expected return 15% and standard deviation 20%. The rate ofreturn on risk-free Treasury bills is 5%. Find the optimal portfolio of an investor with preferences given by: U= E(r)- σ^2

in each of the following cases:

a. borrowing to buy P on margin is possible at a rate of 5%.
b. borrowing to buy P on margin is possible at a rate of 10%.

The blumer company entered into the following transactions during 2012: 1. the company was started with $22,000 of common stock issued to investors for cash. 2. on july 1, the company purchased land that cost $15,500 cash. 3. there were $700 of supplies purchased on account. 4. sales on account amounted to $9,500. 5. cash collections of receivables were $5,500. 6. on october 1, 2012, the company paid $3,600 in advance for a 12-month insurance policy that became effective on october 1. 7. supplies on hand as of december 31, 2010 amounted to $225. the amount of cash flow from investing activities would be: