exam Maths Puzzle Numerical Ability

Solve the following 2 x 2 systems using substitutions

y=2x + 3y = 43
5x - 3y =-29

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exam Other Question

Find the five-number summary of the following set of numbers.

0.16, 0.08, 0.27, 0.20, 0.22, 0.32, 0.25, 0.18, 0.28, 0.27

HELP can someone please explain this five number thing to me? I do not understand this either. :( Solve the system by graphing.
3x + y = 6
3x � y = 0