Answer: Arithmetic and 3
Step-by-step explanation:
12 - 9 = 3 9 - 6 = 3 The common difference is equal and is three and so it is an arithmetic sequence
12/9 = 4/3 9/6 = 3/2 The ratio is not equal so this is not a geometric sequence
Answer:
30
Step-by-step explanation:
180-100=80
80+70=150
180-150=30
Answer:
the correct answer is D: they form concentric circles.
Step-by-step explanation:
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Answer:
thanks
Step-by-step explanation:
:)