exam Maths Puzzle Numerical Ability

find the mean of the ages: 23,22,21,20,19,18,17,16,15,14

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exam Other Question

State whether each is linear

A)f(x)=100x-37 B)xy-60=0 Solve and graph the solution set. 3x + 2 (is greater than or less than) 2x + 19