exam Maths Puzzle Numerical Ability

Geometry. A square has sides of length 3x - 2 cm. Express the area of the square as a polynomial.

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chaz has a collection of 15 cds. after he gets a part-time job, he decides to buy 3 morecds everytime he goes to the music store. the function c(t)=15+3t counts the number of cds,c after rowing two miles upstream, a rower passes a log in the river. he rows on for one more hour before turning around and rowing back to his starting point where the log has reach