Hello everyone : I have some work to do via Microsoft Access and I have a table for a hotel and I want to do a query by Microsoft Access
I had some problems
I Wishes that someone can help me
the file is Attached
and the query on :
I had some problems
I Wishes that someone can help me

the file is Attached
and the query on :
1• What is the average length of stay per room type?
2• What is the average number of visitors per room type?
3• What is the base income per room (i.e., length of visit multiplied by the daily rate) during a specified period of time?
4• What is the strongest customer base?