Determine whether the given is a polynomial in one variable or not: Polynomial: 4x^2-3x+7

Arandom sample of 150 high school students were asked whether they have a job. the results are shown in the table. have a job do not have a job male 48 35 female 41 26 select a ord or phrase from the drop-down menus to correctly complete the statements describing the association.

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Solve 2x+y=3 x+y=5 in substitution method