Please see the Related Questions for each of the 3 coins.
There is no such thing as a 1968 Franklin halfdollar. But there is a John F. Kennedy half dollar from 1968.
If your coin says "QUARTER DOLLAR" on the back it's a Washington quarter and is worth only 25¢ John F. Kennedy lived in the 20th century and would not be wearing a powdered wig!If your coin says "HALF DOLLAR" on the back it's a halfdollar and is worth extra for its silver content. There's more information at the Related Question.
If you check the back you'll find that you have a halfdollar. There has never been a US-issued Kennedy silver dollar.
In the year 2000, the value of the quarter dollar which is 25 cents was $0.25.
No, a quarter is a different coin, and its value is only a quarter (1/4) of a regular dollar.
A 1967 Washington quarter has no silver and is face value.
It's just a quarter spend it
25 cents.
25 cents
$455.5
The coin is a common quarter so spend it.
25 cents