The Gateway Arch in St. Louis can be modeled by − 2/315 (x+315)(x −315), where x and y are measured in feet. The x-axis represents the ground. A. Find the width of the arch at ground level. B. How tall is the arch? must show work QUICK PLEASE !

Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?

Sum is 17 and their difference is 3

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.