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Оцени выражение \(5x+2y\) , если известно, что \(3\lt x\lt 7\) ; \(2\lt y\lt 4\) .

[ ][ \(\gt \) | \(\lt \) | \(=\) | \(\geqslant \) | \(\leqslant \) ] \(5x\) [ \(\gt \) | \(\lt \) | \(=\) | \(\geqslant \) | \(\leqslant \) ][ ];

[ ][ \(\gt \) | \(\lt \) | \(=\) | \(\geqslant \) | \(\leqslant \) ] \(2y\) [ \(\gt \) | \(\lt \) | \(=\) | \(\geqslant \) | \(\leqslant \) ][ ];

[ ][ \(\gt \) | \(\lt \) | \(=\) | \(\geqslant \) | \(\leqslant \) ] \(5x+2y\) [ \(\gt \) | \(\lt \) | \(=\) | \(\geqslant \) | \(\leqslant \) ][ ].

Ответ: ([ ];[ ]).

Оцени выражение \(0,5x-3y\) , если известно, что \(-1\lt x\lt 3\) ; \(4\lt y\lt 8\) .

[ ][ \(\gt \) | \(\lt \) | \(=\) | \(\geqslant \) | \(\leqslant \) ] \(0,5x\) [ \(\gt \) | \(\lt \) | \(=\) | \(\geqslant \) | \(\leqslant \) ][ ];

[ ][ \(\gt \) | \(\lt \) | \(=\) | \(\geqslant \) | \(\leqslant \) ] \(-3y\) [ \(\gt \) | \(\lt \) | \(=\) | \(\geqslant \) | \(\leqslant \) ][ ];

[ ] \(\lt -3y \lt\) [ ];

[ ][ \(\gt \) | \(\lt \) | \(=\) | \(\geqslant \) | \(\leqslant \) ] \(0,5x-3y\) [ \(\gt \) | \(\lt \) | \(=\) | \(\geqslant \) | \(\leqslant \) ][ ].

Ответ: ([ ];[ ]).