833.3333
453
All US banknotes weigh 1 gram each. A US pound is 453.6 grams, so assuming no one is going to tear up 6/10 of a $20 bill, one pound would contain 453 bills worth $20 x 453 = $9060
$60 is £36.29
13 divided by 3= 4.33333333
453
20.5909
It is simply: 453/W
0.453
12.0552
4.871
453 / 3.1459(ect) = 144.19
0.0247
-459
151
32.3571
64.7143