Question

PLEASE HELP!!!!!
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Answer 1

0
`\leq`x
`\leq` 18/5

Explanation:

-9
`\leq` 5x-9

breakdown,

-9+9
`\leq` 5x 5x-9<9

--> 0
`\leq` 5x x
`\leq` 18/5

--> x
`\geq` 0