It's usually very difficult to forecast coin and banknote prices two or three years in the future let alone a decade, but 1985 $100 bills are neither rare nor valuable. Even today (2015) a circulated one has no extra worth; in another 10 years they probably won't gain more than $5 at retail.
100usd
No.
Dollar bills are not always worth one dollar, however one dollar bills are worth one dollar for the sake that 1=1, it is a one dollar bill, and can be exchanged for goods and services.
What is the worth of a red seal 2 dollar bill
It's a dollar, spend it.
About $5 today.
100usd
It is a common $100 bill in circulation and has a value of $100.
No.
It's still worth $10.
1985Federal Reserve NoteGreen$5$5.50 A 1985 Federal Reserve Note that is Green and is a 5 dollar bill is worth about $5.50. You can go to US currency auctions . com and it will give you a list of how much different currency is worth.
It could be worth as much as a hundred dollars. However, if the corners are bent it would only be worth ninety. Also, if there is a crease through Franklin's face it would only be worth eighty. To be serious, there is nothing special about a 1985 100$ bill. Take it to your bank for a new copy or put it under your mattress. It might be worth something in fifty years.
At least $20 US dollars (I mean, c'mon, it's not that hard)
as of February 18, 2012, a 1000 peso Mexican bill from 1985 is worth about 75 cents.
a half hundred dollar bill is worth $50
At the time, it was worth one dollar.
It's worth 5 dollars.