exam Maths Puzzle Numerical Ability

2y-3x=18 and x+y=4

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exam Other Question

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 You have at least $30 in change in your drawer, consisting of dimes, and quaters. Write an inequality that shows the different numbers of coins in your drawer.