Attempted to add what I could make out, with a rough conversion on the cost... Also, I JUST learned the part on her leg in class today, but couldn't make out exactly what point its trying to make. Hopefully someone else can correct/finish...

This is exactly what they did in class when the teacher was out

It's 500 yen to the dollar. 1 yen doesn't equal 1 cent.

no it isn't it's 93.9JPY to 1USD