Sorry I can’t help you because I can’t measure it
Answer:
1.7 miles
Step-by-step explanation:
Given that,
Jacob walks 1.5 miles north.
He turns and walks 0.8 miles west.
We need to find how far is he from his starting point. Let he is at a distance of x miles from the starting point. It can be calculated as follows :

Hence, he is 1.7 miles from his starting point.
Yes because 3² + 4² = 5²
to be sure
9 + 16 = 25
25 = 25