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Answer:
w=6x+1.25
Step-by-step explanation:

Actually Welcome to the Concept of the areas,
Area of a rectangle = length * width.
hence, l = 11 and w = 4
hence, 4*11 = 44 square units.
Area = 44 sq. units
8x4x11 - (4x1x3)
352 - 12
= 340
The answer is 340yd^3