Eli and Claire work at a dry cleaners ironing shirts. Eli can iron 15 shirts per hour, and Claire can iron 20 shirts per hour. Eli and Claire worked a combined 17 hours and ironed 300 shirts. Graphically solve a system of equations in order to determine the number of hours Eli worked, x, and the number hours Claire worked, y

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock

open side up . . 1/50 . . 2%

closed side up . . 5/50 . . 10%

landed on side . . 44/50 . . 88%