Use the distance formula:
<span>

<span>
Plug in the given coordinates:
</span><span>

<span>
Simplify:
</span>




You can leave it as:

or in decimal form as: 7.2
</span></span>
Step-by-step explanation:
Some expressions that are equivalent to this is: 1 - 1/5; 2 - 1 1/5; 3 - 2 1/5; etc.
Okay so, $16.80 - $6.30= $10.50
So the answer is $10.50