The cost of 5 boxes of small paper clips and 2 boxes of large paper clips is $49.30. 7 boxes of small clips and 4 boxes of large ones cost $79.10. find the cost of a box of each size of paper clips.

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.