I'm assuming you mean a Canadian half dollar, if so then not a whole lot, silver was removed in Canadian coinage before 1969 and as such it is pretty much just worth face value which is 50 cents Canadian.
It can be worth about $20-$30. It mainly matters if it is in good condition
July 8, 2009 A 1969 one dollar bill in crisp condition is worth about $2-$3.
A 1969 silver Kennedy half dollar is worth $5 inn perfect condition. The value of the silver is worth $2.87.
A US Kennedy half dollar dated 1969 is only 40% silver with a value of about $2.00.
A 1969-S proof half dollar - aka - Kennedy Half Dollar is worth: $7.00.
Twenty
A 1969 half dollar is 40% silver. It is a common date only worth melt. At the time of writing it is worth about $3.50 in silver scrap.
Nobody knows that
20 dollars
20 dollars
The 1969 penny with Kennedy head is only worth a couple of dollars with card and a dollar without card.
At least $10.00.