The answer is 3/10 because there are 5 in the US and 10 in Australia. 3 from the US are also mined in Australia.
So it's 3/10
Hope this helps! :-)
D) it has to depend on the type of crypt
OK SOMEONE ALREADY ANSWERED SO I NEED DA POINTS TYSM AND ALSO ANANDI34 IT’S I HOPE IT HELPS IT’S OK THO BUT AT LEAST YOU KNOW