exam Maths Puzzle Numerical Ability

Solve the following systems by graphing.
x - 2y = 8
3x - 2y = 12

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exam Other Question

Yellow paint and blue paint must be mixed in the ratio 2:3 to produce the desired shade of green paint. How much of each color should be used to produce 4 L of green paint? Looking for any help involving functions and domains. Thanks very much!
Find the requested value.
f(3) for f(x)={3x+1, if x<1
3x, if 3 (lesser than or equal to si