SO can i go 19X8 in the front with 225 and then 19X9 in the back with 245 with both +45 offset???

WHat kind of tires would you guys recommend? Not really expensive ones. Something that is in the middle range. I am in CA so i probably will only need summer tires??

 

I was looking at purchasing a set of wheels (19") and they told me the offset on the wheels is 15/front and 20/rear. Now, I dont know anything about offset, but they told me that it would fit perfectly? Is this true. The size of the wheels are 19x8/front and 19x9.5/rear.

I am on the phone w/ a different wheel company and they are saying the offset is 20/front and 15/rear....now I am really confused

The tires are 245/35/19 in the front and 275/30/19 in the rear.