exam Maths Puzzle Numerical Ability

solve the linear inequality and graph the solution
x-2y>4
x<4

(also there is a little line under they < and > symbols.

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exam Other Question

Solve.
Not sure how to write square root,

(square root 3x+24) = x+2

I know a sqiare root is the opposite of exponent 2, not sure how to work this.
ok there is this extremely hard question for our class extra credit so here it goes.....
9821734682123457(squared)+2*18927365=819723568917469567