exam Maths Puzzle Numerical Ability

Points X,Y and Z are collinear, with point X between points Y and Z. If XY =14.8 and YZ= 18.2, find XZ????

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exam Other Question

Apply using quadratic formula to find the roots and graph.
g(x)= x^2 - x - 12
Solve each system by the addition method:

x/3 - y/2 = -5/6

x/5 - y/3 = -3/5