ACTIVITY #3 Solve each problem involving integers. Show your solution.

1. Paula gets into the elevator on the fifth floor of a shopping mall. She goes up 9 floors to reach the food court. After an hour, she went down 3 floors to buy books. At which floor is she now?

2. A mercury thermometer records a temperature of 8 degrees Fahrenheit at 10 AM. If the temperature drops by 3 degrees Fahrenheit every hour, what will be the temperature by 2 P M. of the same day?​