Since 1971 all circulating half dollars have been made of copper-nickel, not silver. Your coin is only worth face value unless it's in uncirculated condition.
One dollar, and they have no silver in them.
A 1978-D Eisenhower dollar has no silver in it and is only face value.
The coin is face value.
The US did not make any silver coins dated 1978, if the coin is a large size Eisenhower dollar its likely only face value unless its Proof or Uncirculated.
These coins contain no silver and are worth only face value.
One dollar, and they have no silver in them.
A 1978-D Eisenhower dollar has no silver in it and is only face value.
The coin is face value.
The coin is a Eisenhower dollar and has no silver in it. Only proof and uncirculated coins from the mint have more than face value.
The US did not make any silver coins dated 1978, if the coin is a large size Eisenhower dollar its likely only face value unless its Proof or Uncirculated.
These coins contain no silver and are worth only face value.
Eisenhower was on the dollar coin from 1971 to 1978. J. F. Kennedy is on the half dollar. Whichever one you have, assuming the coin is from circulation it's only worth face value. They're made of copper-nickel, not silver, so they have no precious metal content.
No such coin exists. Silver dollars were last minted for circulation in 1935, and the last silver dollar sized coin was the Eisenhower dollar of 1971-1978, there was no dollar coin minted in 1967.
Morgan Silver dollars were not made in 1978. They were minted from 1878 till 1904 and again in 1921. Check your date again and then ask with the correct date.
value of a 1978 corvett
If you turn the coin over you'll find that it's a HALF dollar. Dollar coins carried a portrait of President Eisenhower from 1971 to 1978. In addition, all circulation halves from that year (in fact, from 1971 to today) are made of copper-nickel, not silver. There's more information at the Related Question.
One dollar.