What is the best estimate for the product 289 and 7? make it clear to understand : )

Two lines that do not intersect are skew. always sometimes or never

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

What is the distance between point a and b