exam Maths Puzzle Numerical Ability

What is the domain of g(x)=ln(x-4).Please explain how you obtained your answer.

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exam Other Question

Suppose you have a Venn diagram showing three sets. Call the sets A, B, and C. How many regions of the Venn diagram correspond to elements that are part of set A? Why so many? Please can someone help me. I am having trouble with this problem on a homework sheet.

3.) Write the series in summation notation. Use the index i and let i begin at 1 in each