Alyssa, Juan, Myisha, Tracy, and Scott raised a total of $550.68 for the nearby homeless shelter by walking in a “walk-a-thon.” Before the walk, they each got promises (pledges) from a number of people to contribute money for each mile they walked. The average amount per mile that each person raised ranged from $7.10 to $20.70 per mile, and the total distance each person walked ranged from 5 miles to 13 miles.

At the end of the walk-a-thon, the group collected the exact amount that had been pledged to them for each mile they walked. All amounts are rounded to the nearest penny.

Using the information above and the clues below, how far did each person walk, and how much did they each earn to contribute to the shelter?

• Alyssa walked the fewest miles, but her average pledge per mile was 50% more than Scott’s.
• Juan had an average of $10.35 pledged per mile, and he walked 3 miles more than Alyssa did.
• Myisha walked .25 mile more than Alyssa, but her average pledge per mile was twice that of Juan’s.
• Tracy had the least amount pledged per mile.
• Scott walked twice as far as Alyssa did, and had an average of $1.45 more pledged per mile than Juan.