exam Maths Puzzle Numerical Ability

ab
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ba
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and a nother one is

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exam Other Question

A toy company manufactures toy cars and toy boats. Toy cars require 1 unit of plastic and 3 units of metal. Toy boats require 2 units of plastic and 1 unit of metal. There are 17 PLease help!!! determine algebraically whether the lines are parallel, perpendicular or neither. state the number of solutions.

y = 1/2x + 3
x - 2y = -6