Answer:
answer is 12
Step-by-step explanation:
the answer is 9
6= 12 half of 6 is 3 and 3 = 6 then 6 + 12 = 18
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7w^3/5v
42v^3w^4/30v^4w
42 = 6 * 7
30 = 6*5 , factor
6*7v^3w^4/6*5v^4w
6 is common, cancel
7v^3w^4/5v^4w
simplify w^4/w = w^3
v^3/v^4 = 1/v
therefore, 7w^3/5v is the answer
Answer: B
