Answer:
The answer is
→ 19.8 miles
Explanation:
Edward ran 11.90 miles in a week.
Tiffany ran 7.9 miles in a week.
The question is asking how far they ran in total.
Well, to answer that we have to set up what we have to add.
![11.90+7.9=19.8](https://img.qammunity.org/2023/formulas/mathematics/college/6i8vkuw0ge2f711z8bdrh1uksyqcpk9f1a.png)
Therefore, 19.8 is your answer.
Hope this helped! :^)