You have $ 10 comma 500 to invest. You decide to invest $ 21 comma 000 in Google and short sell $ 10 comma 500 worth of Yahoo! Google's expected return is 16 % with a volatility of 33 % and Yahoo!'s expected return is 13 % with a volatility of 27 %. The stocks have a correlation of 0.88. What is the expected return and volatility of the portfolio?