Which two ratios are not equal? 1 : 6 and 3 : 18 2 : 14 and 3 : 42 12 : 6 and 2 : 1 3 : 11 and 6 : 22

hi there!

first we need to find out how much they are adding to each number to make the next number.

ex: 4 + 4 = 8, 8 + 8 = 16, and so on.

so continuing with 32,

32 + 32 = 64

64 + 64 = 128

128 + 128 = 256

256 + 256 = 512

4, 8, 16, 32, 64, 128, 256, 512

the 8th term of the sequence will be 512

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