book Maths Puzzle Numerical Ability

Please solve each absolute value inequality and graph the
solution set. Please help!!
|3x - 7| ></u> -3

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book Other Question

a boat is going a distance of 600km. the way upstram had a current with it at 50 km/h while the one back against the current was 50 km/h also. The total time of the one there was one less thamn the one back. What is the spped of the boat in still air? Simplify (64/729)^-5/6