exam Maths Puzzle Numerical Ability

I submitted this quite a few days ago and I thought I would resubmit it just in case I messed up or something.
Graph the solution set of the following inequality.
x > 4
How do I do this?
I am lost please help?

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exam Other Question

i am making a green potion mixture from two solutions, one containing 24% green color, the other 17% green. I need 5 liters of a solution with 18.5% green color. How much 24% and 17% should i mix? the numerator of a certain fraction is 2 more than the denomenator. if 1/3 is added to the fracgion, the result is 2. find the fraction