Thirty cows.
Fifty Two
6
35
One more that nineteen; twice; as, twenty men., An indefinite number more or less that twenty., The number next following nineteen; the sum of twelve and eight, or twice ten; twenty units or objects; a score., A symbol representing twenty units, as 20, or xx.
I'll go with thee: Thy fifty yet doth double five-and-twenty, And thou art twice her love. Is from Act 2, Scene IV of King Lear
2*13 = 26
2x + 8 = 50
The number works out as 14
Twenty more than twice a number is 52
26 26 + 26 = 52 52 + 1 = 53
fifty fifty
4 + 2*n ≥ 20