Find a rational number that is between 7.7 and 7.9. explain why it is rational

Every time you drive you will experience a combination of driving conditions and environments.

The appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?

What is the lcm of 16 and 40 ? 24 and 40 ?