exam Maths Puzzle Numerical Ability

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

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exam Other Question

It was found that 60% of American victims of health care fraud are senior citizens. If 10 victims are randomly selected, find the probability that exactly 3 are senior citizens. i need help solving this:
(x-radical y-z)-(x+radical y-z)-(radical y+z-x)