Hi Judy,
Welcome to the community.
Quick Base has
And operator. You can find all Quick Base functions and operators
here.
Try this one.
IF(([Your Field Name]<=[Your Field Name])and ([Your Field Name]>=[Your Field Name]),"InHouse","Not InHouse")
You have to replace your Cell name with the Quick Base field.
Please let me know if you need any further assistance.
Thanks,
Gaurav Sharma