exam Maths Puzzle Numerical Ability

Cost of living went up 11%, but Alice got an 11% raise in her salary, she is now earning 27340. How much did she make last year?

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exam Other Question

Determine an equation in the form y=mx+b of a line satisfying the given condition:
throught the point (-5,-5) and parallel to the line 5y-2x=5
Hi may I have some help with this inequality?

Solve the inequality. Express the answer using interval notation.

3-|2x+4|< 1