Here's my part of the story. I had a messed up life and I grew up living at a foster home when I was 10 years old.
He is one of the survivors of the Nazi extermination process in Auschuwitz. The story is told in his point of view.
The caged bird singswith a joyous songof the captive life that kept it safe all along.This answer exemplifies the two birds: free and caged. Free in such a way that it is able to sing a song of its choice, and caged, because even if it is in captive it has something to be thankful for, its safety.
If Nora bikes 30 miles per 1 hour, she'll ride 5 times as much in 5 hours.
30*5=150 miles
Jiro at 45 miles per 1 hour
45*5=225 miles in 5 hours
To find out how many more miles Jiro rides than Nora, subtract:
225-150=75
:)