exam Maths Puzzle Numerical Ability

Thirty one times the total of towice t and 2 is greater than or equal to -6

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exam Other Question

I asked this question a few days ago and I am waiting for an answer. I hope I will get one today.
Suppose that you save for retirement by contributing the same amount each month how do you write an equation for the area of the "dented square" if x represents the length of the large square and y represents the area of the square.