1. On Monday, the value of a stock decreased by point. On Tuesday, the value increased by point. On Wednesday, the value decreased by point. What number represents the change in stock value after the three days?

1. Which statement below is equivalent to ^–15 – 12?

Scientists determined that Antarctica’s average winter temperature was −34.44°C. The difference between this temperature and Antarctica’s highest recorded temperature was 49.44 degrees. What was Antarctica’s highest recorded temperature?

1. Doug earns $10.50 per hour working at a restaurant. On Friday he spent 1 3/4 hours cleaning, 2 1/3 hours doing paperwork and 1 5/12 hours serving customers. What were Doug’s earnings?

1. Which expression has a positive product?

1.     Which expression is equivalent to ? $\frac{5}{8}\ -\ \frac{3}{4}\left(8-\frac{1}{3}\right)+1$