How much should it maintenance on my 2004 Ford Escape cost?

I want to change my rear brakes (drum not disc) and get an oil change. How much would this cost and where would it be the cheapest to get this work done?
How much should it maintenance on my 2004 Ford Escape cost?
If I did it, oil change 20.00 for synthetic oil %26amp; filter, 15.00 for me, petrolium oil and filtr 10.00 and 15.00 for me, brakes 75.00 installed I get the brakes, thats w/out the additional hardware, extra new replacement hardware additional 20.00.

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