Answer:
Ok, here we can see that Mr. Jones has $3,553 in his account, and he actually needs $18,469 to buy the car.
One way of representing this is:
Get a ruler, and draw a line that measures 3.553 cm (or close to it, it shouldn't be exact)
Now draw a line that measures 18.469 cm (again, this shouldn't be exact)
The difference between these lines represents the amount of money that Mr. Jones needs to save.
Now, how we find exactly the quantity?
Let's take the total cost of the car:
$18,469
Now let's subtract the amount of money that Mr. Jones already has:
$18,469 - $3,553 = $14,916
This is the amount of money that Mr. Jones needs to save if he wants to buy the car.