What is a rubbing of ##Question_Title##.57?

Question

my 8yr old cuzin got this question from her math teacher for their scavenger hunt!!!isn't this crazy??

Answer 1

two quarters, 1 nickle, and 2 pennys

10 dimes a nickle 2 pennys

etc.

put paper over the coins take a crayon and rub it

Answer 2

It means to take coins equaling $.57, put them under a piece of paper, then rub the flat side of a crayon on top of them so their image shows up on the paper.

Answer 3

Rubbing Alchohol (Denison)

Approx. Price: $0.57 per 480Milliliters

At least that's what I got when I put "what is a rubbing of $0.57?" into Google, that was the first result.