On monday, the value of a stock decreased by 1/2 point. on tuesday, the value increased by 3/4 point. what number represents the change in stock value after three days?

3women sell hats at a craft fair weekly. the money they make at the fair is split into categories. 9% goes to pay taxes. $55 goes to pay rent for the space they sell in. the rest is split between the women. if the group make $706 at the fair, how much does each women get paid once the money is divided