Which is greater than 4? (a) 5, (b) -5, which is the smallest? (a) -1

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

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The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?