what type of math is this I might be able to help
A Beards, Beards where a fashion choice back then, just like how wemon had black teeth and white painted faces!
Two sets (or three technically)
sets {2, 4, 6, 8, 10} & {8,9,10}
The probability of one of the above numbers because it is a union of those two vars/sets so numbers from either set go
{2, 4, 6, 8, 9, 10}
Thats 6 of the 10 numbers
6/10
.6
If i'm wrong, sorry, haven't done this kind of stuff in a while
I think its 900 i’m not sure
The answer would be 10 to the third because if you divide that it would equal 1,000