Find the average value of the given function
f(x, y)
over the plane region R. 
; R is the region bounded by the graph of y = 6x and y = 0 from x = 1 to x = 5.
Definitions:
Cultural Beliefs
The principles and standards shared by a group of people, passed from generation to generation, influencing behaviors and perceptions.
After Death
The period or state following the cessation of life in an organism.
Complicated Grief
A prolonged and intense form of grief characterized by significant difficulty in accepting the loss and moving on with life.
Significant Distress
A considerable level of physical or emotional pain, discomfort, or suffering.
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