The lists below show the relationship between value of x, y & z.(adsbygoogle = window.adsbygoogle || []).push({});

List A, x: 3, 6, 9, 12, 15,.....

List B, y: 28, 26, 24, 22, 20,.....

List C, z: 10.5, 10, 9.5, 9, 8.5,.....

Find

a) a fomula for z in terms of x and y,

b) thenterm of each sequence.

I can see the pattern in A, B & C but i just am not sure how to connect them.

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# Number patterns

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