In my pre al worksheet the question is "why did the population expert feel like he was going crazy? " does anyone know this?

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?

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?

Which image (a’ b’ c’ d’) of abcd cannot he produced using only reflections ?