6. A benchmark index has three stocks priced at $23,$43, and $56. The number of outstanding shares for each is 350000 shares, 405000 shares, and 553000 shares, respectively. Suppose the price of these three stocks changed to $23,$51, and $58 and number of outstanding shares did not change, what is the value-weighted index return? 7. A benchmark index has three stocks priced at $23,$43, and $56. The number of outstanding shares for each is 350000 shares, 405000 shares, and 553000 shares, respectively. Suppose the price of these three stocks changed to $23,$51, and $58 and number of outstanding shares did not change, what is the equal-weighted index return? 8. A benchmark index has three stocks priced at $23,$43, and $56. The number of outstanding shares for each is 350000 shares, 405000 shares, and 553000 shares, respectively. Suppose the price of these three stocks changed to $23,$51, and $58 and number of outstanding shares did not change, what is the price-weighted index return