Answer:
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Step-by-step explanation:
42, 84, 126, 168
Sum of internal angles= 4*180 = 720
x+2x+3x+4x+140+160= 720
10x= 720 - 300
10x= 420
x=42, 2x= 84, 3x= 126, 4x= 168
m 2 = 33 degrees
m 4 = 24.555
3/33 = (2) 5 - 1
35.44329 - 5 (4) = 3.8
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C.
<u>Mean:</u>
<u>The difference:</u>
D.