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Answer:
Transitive
If x = 2y and 2y = 8, then x = 4.
Number 6
The answer is 0.8
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Since the bottom shape is a semi-circle, the 3yd is the radius making the triangle's area 7 x 3 / 2 = 10.5
The semi-circle's area is

/2 = 14.14
Combined, you get an area of 10.5 + 14.14 = 24.64