exam Maths Puzzle Numerical Ability

The salesman told the farmer as an award get your checkerboard and place one penny on the first square. Then place two pennies on the next square. Then place four pennies on the

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exam Other Question
x + 3 less than or equal to 2x + 1 and -4x < -8 Solve the following system of linear inequalities by graphing
x-2y=>4
x<=4


I am getting really confused about where to shade, can anyone help me?

Thanks