Unless it's a wide-rim variety, it's only worth one dollar (assuming the question is about the value).
A 1979 US dollar coin is still worth one dollar.
It's still only a dollar
With a date of 1979 the coin has no silver in it. 1969 was the last 40% silver circulating US half dollar. The coin is worth 50 cents.
That's a Susan B. Anthony dollar coin, and it's worth one dollar.
A 1979 Susan B. Anthony coin is worth 1 dollar (face value) still to this day unless in a condition that is UNC.
A 1979 US dollar coin is still worth one dollar.
The US $1 dollar coin dated 1979 has no silver in it, they are still in circulation if this coin is from pocket change spend it.
It's still only a dollar
From your description the coin is a common Susan B. Anthony dollar (1979-1981 & 1999) that is in circulation today. It's just a dollar coin, spend it.
With a date of 1979 the coin has no silver in it. 1969 was the last 40% silver circulating US half dollar. The coin is worth 50 cents.
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A US half dollar with a date of 1979 is a Kennedy half dollar not a liberty half dollar. The coin has no silver and is only face value.
That's a Susan B. Anthony dollar coin, and it's worth one dollar.
A 1979 Susan B. Anthony coin is worth 1 dollar (face value) still to this day unless in a condition that is UNC.
The US issued no silver coins of any type in 1979, but if you mean a 1979 SBA dollar coin, just spend it.
Susan B. Anthony, thus the coin is name the Susan B. Anthony dollar.
It's worth one dollar.