Answer:
the answer is D. 5.6
Step-by-step explanation:
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Answer:
x=35
Step-by-step explanation:
180-147=33 (angles in a straight line)
33+3x+42=180 (angles in a triangle)
3x+42=147
147-42=105
105/3=35
They are 6, 8, 10, 12 years old.
all of those added is 36 and two-year intervals translates to 2 years apart per cousin.
I think the answer is 300+20+8
and 400+7 :)
