[R] Sort out number on value

[Yellow]

Can anyone help me maybe with a question I can seem to find an answer on. 

I have this: x = c(1, 5, 70, 53, 7, 29, 75, 37, 30, 11) 

And I would like to have the numbers above 20 selected out. 
But I can't find what code I need for that.... 
I tried sort(), but then I can't fill in I only need those above 20. 

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