Avan moves with a constant speed of 76 miles per hour. how far can it travel
in 2 1/2 hours?

190 miles per hour is the answer. If you add 76 plus 76 twice you end up with 152, now it said  2 and a "1/2" hours so you would divde 76 by 2, and end up getting 38. Add 38 to your 152, and you get 190 miles per hour