I need help on this database SQL questions refer to the table given. Thank you

1. List road bicycle sale prices which are greater than the average sale price sold in 2011. List these bikes with the most expensive on the top.

2. Which cities in California do not have retail stores in them.

3. Which customer(s) purchased the most number of bicycles in a single month. Hint Use the format function: format(orderdate, yyyy-MM) to group sales into a single month value.

Customer TubeMaterial BikeTubes ModelType Tube Name Component Groupl Paint ColorStyle Totallength WaterBottleBr azeOn HeadTubeAngle Manufact urerlD CustomerTrans Category LetterStylelD Datelnstalled TransactionDate StorelD ZIPCode CitylD Quantity Received ReceiveDate Manufacturer Manufacturer Trans WorkArea Manufactu rerlD Manufacturer Name Description ZIPCode