All of the following could be measurements on a scale drawing that has a scale of 1:4 except Three centimeters represent 12 meters.
One foot represents 4 feet.
Five inches represent 20 inches.
Two millimeters represent 8 millimeters.

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.