Answer
a) see plot on the number line below
b) Wyoming, Wisconsin, Washington, West Virginia, and Virginia
Work Step by Step
a) The Record Low ($^\circ F$) information is plotted on the number line below.
b) On the number line, a number on the right is greater than the numbers on the left. Hence, the order (from coldest to warmest) of the given temperatures ($^\circ F$),
$-30,$ $-48,$ $-37,$ $-55,$ and $-66,$ is
\begin{array}{l}\require{cancel}
-66^\circ F
\text{ (Wyoming),}
-55^\circ F
\text{ (Wisconsin),}
-48^\circ F
\text{ (Washington),}
-37^\circ F
\text{ (West Virginia), }
-30^\circ F
\text{ (Virginia)}
.\end{array}
