Adding and Subtracting Integers

Bob lost 5 points on page one of his math test and he lost 9 points on page two of his math test.  Which equation best describes Bob progress on his math test?

The temperature on a cold winter day starts out at 10 degrees, but it drops rapidly 24 degrees due to a strong cold front moving in.  What is the current temperature?

12.  On Monday, the price of gas decreased 6 cents; on Tuesday, it increased 9 cents. What was the overall change of the price of gas by the end of the day on Tuesday?

• 3 cents increase
• 3 cents decrease
• The gas is 3 cents on Tuesday.
• The gas is 12 cents on Tuesday.