book Maths Puzzle Numerical Ability

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(3x-7)exponent 4 . (3x-7)exponent -4

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book Other Question

The 10th term of this sequence is .078125. What is the 11th term? How do u figure that out 23. Plot points with coordinates (2, 3), (3, 4), and (4, 5) on the given graph. What do you
observe? Can you give the coordinates of another point with the same property?