exam Maths Puzzle Numerical Ability

Solve. Then Graph.

7x >_ 63 (The _ is supposed to be under the >)

Would the solution be {xlx<9} ?? AND
the graph be a hollow circle on the 9 and and arrow towards the numbers higher than 9? Am I even close?

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exam Other Question

Please help me.

use the subtraction method to solve for s.

3t+5s=10
3t+ s=2

&

4s-5t=7
2s-5t=3
Perform long division:
2x^2 + xy - 2y^2 / 10x^3-7x^2y-16xy^2+12y^3