For which values of x is the expression undefined?
x
−
9
x
2
+
9
x
+
18
x
2
+9x+18

The appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?

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?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie