Rachel was riding her bike along a trail and traveled 45 miles in 4.5 hours. When Eleanor was riding on the same trail, she traveled 10.5 miles per hour. What was Rachel's unit rate for her bike ride? (Miles per Hour)

To find the unit rate, divide the total distance traveled by the total time taken. Rachel traveled 45 miles in 4.5 hours, so her unit rate is 45 miles divided by 4.5 hours, which equals 10 miles per hour. Therefore, Rachel's unit rate for her bike ride was 10 miles per hour.