A stock market comprises 4600 shares of stock A and 1600 shares of stock B. Assume the share prices for stocks A and B are $15 and $30, respectively. If you have $15,000 to invest and you want to hold...

A stock market comprises 4600 shares of stock A and 1600 shares of stock B. Assume the share prices for stocks A and B are $15 and $30, respectively. If you have $15,000 to invest and you want to hold the market portfolio, how much of your money will you invest in Stock A?