In order to solve this problem, we will use a number line. Numbers to the left of zero on the line are less than numbers to the right. 

Therefore:

In order to solve this problem, we will use a number line. Numbers to the left of zero on the line are less than numbers to the right. 

Therefore:

In order to solve this problem, we will use a number line. Numbers to the left of zero on the line are less than numbers to the right. 

Therefore:

From our question we know that Jessica lives at point  and Alyssa lives at point . We want to draw a coordinate plane and plot both of these points. Your coordinate plane should look something like the following:

Now that we have these points graphed, we can count the units between them. Now that we have these points graphed, we can count the units between them. Jessica ran units to Alyssa's house.

From our question we know that Jenny lives at point  and Brittany lives at point . We want to draw a coordinate plane and plot both of these points. Your coordinate plane should look something like the following:

Now that we have these points graphed, we can count the units between them. Now that we have these points graphed, we can count the units between them. Jenny ran units to Brittany's house.

From our question we know that Lauren lives at point  and Cassie lives at point . We want to draw a coordinate plane and plot both of these points. Your coordinate plane should look something like the following:

Now that we have these points graphed, we can count the units between them. Now that we have these points graphed, we can count the units between them. Lauren ran units to Cassie's house.

From our question we know that Sara lives at point  and Kathy lives at point . We want to draw a coordinate plane and plot both of these points. Your coordinate plane should look something like the following:

Now that we have these points graphed, we can count the units between them. Now that we have these points graphed, we can count the units between them. Sara ran units to Kathy's house.

From our question we know that Molly lives at point  and Alyssa lives at point . We want to draw a coordinate plane and plot both of these points. Your coordinate plane should look something like the following:

Now that we have these points graphed, we can count the units between them. Now that we have these points graphed, we can count the units between them. Molly ran units to Alyssa's house.

From our question we know that Molly lives at point  and Cassie lives at point . We want to draw a coordinate plane and plot both of these points. Your coordinate plane should look something like the following:

Now that we have these points graphed, we can count the units between them. Now that we have these points graphed, we can count the units between them. Molly ran units to Cassie's house.

From our question we know that Avery lives at point  and Ashley lives at point . We want to draw a coordinate plane and plot both of these points. Your coordinate plane should look something like the following:

Now that we have these points graphed, we can count the units between them. Now that we have these points graphed, we can count the units between them. Avery ran units to Ashley's house.