This is not a US Mint error coin, it's likely a homemade glued together coin that has no value at all. But if it's a machined novelty coin it may be worth $6.00-$8.00 depending on the quality
You might get a dollar for it from a collector, or face value from a dealer.
A half dollar.
Kennedy is on the HALF dollar. A 1994 half is worth 50 cents.
If you mean a 1998 Kennedy half dollar, the coin has no silver in it and is worth face value.
Eisenhower was on the dollar, and Kennedy is on the half dollar. Either way, any circulated bicentennial coin is worth face value.
The coin is face value
If the coin is a US Kennedy half dollar dated 1974 it has no silver in it and is face value.
....50 cents. The coin contains no silver and is in common circulation. It has no premium over face value.
Face value only.
All US half dollars from 1964 to date have Kennedy on them, your 1995 half dollar is face value.
It's a quarter, not a half, and it's only worth face value.
Face value only! 50 cents