exam Maths Puzzle Numerical Ability

Ttanslate into inequality, and solve. Express the answer in interval notation.

The diference between a number and five is less than seven.

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exam Other Question

As part of his exercise regimen, Chris Barker walks a distance of 2 miles on an indoor track and then jogs at twice his walking speed for another 2 miles. If the total time spent Use a table of values to graph f(x) and g(x) on the same set of axes.
f(x) = 2^3x and g(x) = 8^-x
I am having difficulty with picking the x values what x values would be suitab