An ivestment dub has set a goal of earing 15% on the money it invests in stocks. The members are considering purchasing three possble stocks, growth per share (in dollars) summarized in the following table. (Let x-computer shares, y-utility shares, andz-real shares.) with their cost per share (in doilars) and their projec Stocks Computer 6y) utility()Retail @ 30 6.00 26 2.40 Growth/share 6.00 (a) If they have $392,000 to invest, how many shares of each stock should they buy to meet their goal? (f there are infinitely many solutions, express your answers in terms of z as in Example x, y, z)- (b) If they buy 900 shares of retail stock, how many shares of the other stocks should they buy? utility What if they buy 1800 shares of retail stock? shares computer shares (c) What is the minimum number of shares of computer stock they should buy? shares What is the number of shares of the other stocks in this case? retail d) What is the maximum number of shares of computer stock they should purchase? shares shares What is the number of shares of the other stocks in this case? shares shares retail