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You have three tuning forks, A, B, and C. Fork B has a frequency of 441...

You have three tuning forks, A, B, and C. Fork B has a frequency of 441 Hz; when A and B are sounded together, a beat frequency of 1 Hz is heard. When B and C are sounded together, the beat frequency is 8 Hz. What are the possible frequencies of A? lower frequency? upper frequency? / What are the possible frequencies of fork C? upper frequency? lower frequency? / What beat frequencies are possible when A and C are sounded together? upper frequency? (tried 10 and 6, neither are right) lower frequency? (tried 10 and 6) (again not correct)

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