Alright, let's work through the problem step by step.
### Problem Statement:
The temperature when Spencer arrived at school was -4°F. By the time school got out, the temperature had risen by 13°F. We need to determine what the temperature was when school got out.
### Steps to Solve:
1. Identify the Initial Temperature:
- The initial temperature when Spencer arrived at school was -4°F.
2. Determine the Temperature Change:
- During the school day, the temperature increased by 13°F.
3. Calculate the Final Temperature:
- To find the final temperature, we need to add the temperature increase to the initial temperature.
4. Perform the Calculation:
- Initial Temperature: -4°F
- Temperature Increase: +13°F
- Final Temperature = Initial Temperature + Temperature Increase
- Final Temperature = -4 + 13
### Result:
After performing the addition, we find that:
- Final Temperature = 9°F
Therefore, the temperature when school got out was 9°F.
