There's never been any regulation making it illegal to have any kinds of bills in any sequence order.
In fact, when an ATM is loaded with new bills they'll almost always be in sequential order, so if it were illegal to have them nearly every ATM in the country and every person who used them would be in violation!
If you have four of them, then the set is worth $80.
Kate has 28 five-dollar-bills and 32 twenty-dollar-bills.
If you have 20 ten-dollar bills, that amounts to a total of $200. Since each twenty-dollar bill is worth $20, you would get 10 twenty-dollar bills from that $200.
17 dollars
0
$1,300
no
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.
5
500000 of them.
$150.00 They have no other value
If you have 100 one-hundred-dollar bills in sequential numbers, their total value is $10,000. The sequential numbering does not affect their monetary value; it remains the same as any other set of 100 one-hundred-dollar bills. Collectors may find sequentially numbered bills more interesting, possibly increasing their collectible value, but in terms of face value, it's still $10,000.