How many ways can the 11 employees be assigned primary duties if the bookstore wants their to be 4 cashiers, 2 people shelving, 2 people filling on-line orders, and 3 people doing customer assistance?

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.