Answer:
He is 10.1 miles away from his house
Explanation:
First you translate the text into an equation using the miles he runs away from his house as positives and the miles he runs towards his house as positives.
+15.6, -10.8, +5.3
Then you put it into an equation and solve
(15.6 - 10.8) + 5.3
4.8 + 5.3
10.1