exam Maths Puzzle Numerical Ability

I missed class due to an illness and I don,t understand how to do this one. could you help me?

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exam Other Question

Determine the correct half-plane, and complete the graph:
y > 3
:
The graph has a broken horizontal line going across the graph at the 3 point mark on the graph. Any help with this would be very much appreciated. Thanks. Solve for x: 3^x+2 plus 3^x = 270

Please use steps

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