I am hoping someone can help me with this IF statement

Column I = Quantity ordered
Column J = Price for quantity of 11 or less ($10.00)
Column K = Price for quantity greater than 11 but less than 24 ($9.00)
Column L = Price for quantity of 24 or more ($8.00)

Here is what I have tried and I get an error message saying to many variables.

=IF(I6<=11,I6*J6,IF(I6>11, but<=23,I6*K6,IF(I6>23,I6*L6)))

Any help would be much appreciated