ANSWER
[tex]x \geqslant 40[/tex]
See graph
EXPLANATION
The given inequality is
[tex]200 - 4.5x \leqslant 20[/tex]
Group like terms.
[tex] - 4.5x \leqslant 20 - 200[/tex]
[tex] - 4.5x \leqslant - 180[/tex]
Divide both sides by -4.5 and reverse the sign of the inequality.
[tex]x \geqslant \frac{ - 180}{ - 4.5} [/tex]
[tex]x \geqslant 40[/tex]
See attachment
