None. 1985 US nickels are made of copper and nickel.
In fact, all U.S. nickels made from 1866 to mid-1942 and from 1946 to the present are all made from that same alloy.
From mid-1942 to 1945 nickels did contain a small amount of silver because nickel metal was needed for the war effort. Those "war nickels" are the ONLY ones that have any silver in them.
One Cent is the value. The US has never made a silver penny. It may look like silver or have been silver plated but it has no collectible value.
There was never a silver Indian Head penny.
No such thing as a 94 silver penny.
If it's dated 1985, that would be zinc, not silver. It's worth one cent. No US pennies contain silver.
The 1910 1955 half penny stamp value of silver jubilee is two pounds.
4,002,000
The US has never made and never will make silver pennies. If a penny was silver it would be worth more than a dime.
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Your 10 peso coin is worth less than a penny U.S.
It's steel, not silver, and it's worth about 5 cents.
The only "silver" penny was minted in 1943 to support the war effort. Yours is probably zinc plated.
It's worth exactly one cent.