Hi who wants some free points

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?

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

Find the value of x for which line a is parallel to line b