exam Maths Puzzle Numerical Ability

Solve the following inequality for x. Express your answer in interval notation. Show your algebraic steps.

2x - (7 + x) is less than or equal to x

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exam Other Question

The sum of the first 12 terms of an AP (Arithmetic Progression) is 222, the sum of the first 5 terms is 40. Write out the first four terms of the series.
You deposit $1200 into a savings account that earns 3% interest compounded anually. Find the balance of the account after 2 years.