Ineed answering both of these question. most and quickest gets the brainliest answer! : d

is the second one if you need the answers just tell me 

idk scale factor but ik that the trail is 16 km for the first trail and the second idk

Well in order to lose a pound you would have to burn 1,500 calories. the more calories you burn the more weight you lose. in order to lose 2 pounds you would have to run 4 hours and 28 minutes.