7. It was -2 degrees this morning but by afternoon it was 21 degrees. What was the change in temperature?
3 points
23 degrees
19 degrees
-23 degrees
-42 degress
The change in temperature can be calculated by finding the difference between the afternoon temperature and the morning temperature.
21 degrees - (-2 degrees) = 21 degrees + 2 degrees = 23 degrees
Therefore, the change in temperature is 23 degrees.
The correct answer is: 23 degrees