The answer is $59.62, how I Got my answer.
10% of a number is easy to find, example. 10% of $100=$10 or $63=$6.30 all you have to do is take away a zero.
So I first looked at $50.00 that equals $5.00 then I looked at $4.00 equals 40 cents then I looked at 20 cent equals 2 cent. So you get the answer of $5.42 then I added $54.20+$5.42=$59.62.
I hope this helps.