Probably about US$800-$1000 for the set, although a bit less if from the New York ("B") or Chicago ("G") Federal Reserve branches.
If you have four of them, then the set is worth $80.
Go to your local bank and order them free of charge if you are a member. I order stacks of 20's valued at 2,000 and stacks of 100's valued at 10,000 complete un-circulated and sequential.
In average circulated condition it is only worth face value. Crisp uncirculated bills would be worth about $30 - $35 at retail.
Non sequential bills, are bills whose serial numbers are not in sequence. They are random and completely different from each other.
There are misprinted bills in every series.
$150.00 They have no other value
$1,300
If you have four $100 bills, then the total value is $400. The only way a sequential set will have collector value is if they're an old series.
A date is needed. Please post a new, separate question.
If you have four of them, then the set is worth $80.
Unless it's crisp and uncirculated, face value only
worthless site wastes time
If you receive a dollar from anyone besides the federal government, it is circulated. It can be in 100% mint condition, if it has ever been used, it is circulated. Most uncirculated bills are part of a series, and will come with identification
17 dollars
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All dollar bills have signatures printed on them; one is the Secretary of the Treasury, and the other is the U.S. Treasurer. An uncirculated series 1974 might sell for a few dollars, but it's not especially valuable.
$100....