If y varies directly as x, and y is 18 when x is 5, which expression can be used to find the value of y when x is 11? a. y=5/18(11)b. y=18/5(11)c. y=(18)(5)/11d. y=11/(18)(5)

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.