Oracle how to get this result?

[cpu2007]

Hello everyone
I am trying to solve this problem which I can't find a solution of because I am new to Oracle and hope someone can guide me.

I have attached the .sql file which creates the tables and everything and from this database I need to:
Show the dlrcode-dlrname (which is the dealer code and dealer name)
I need to calculate the total number of bike sold to each dealer
and the total sales price to each dealer.

Now I managed to do a little but are not being able to do it all.
This is the query I made and if someone things there are amendmends to do please let me know.

<CODE>SELECT d.dlrname,b.DLRCODE, b.bikepurchprice, b.bikesellprice
FROM rr_bike b,rr_dealer d
where d.dlrname=d.dlrname and b.dlrcode>0;</CODE>

Thank you in advance.