Answer:
x=1, y= -2
Step-by-step explanation:
Please see the attached pictures for full solution.
Each of the 223 million people put $10 back into circulation every year.

So every year, this much money goes into circulation, and this is how much that goes into circulation the first year.

This is how much that will be in circulation after 2 years.

This is how much that will be in circulation after 3 years.
So we can create the table:
If the volume of the radius would call me tonight to tell me that she loves me, i'll gladly solve this problem and copy-paste it to all my phone contacts and e-mail contacts and viber, yahoo, skype whatever :)
The y-value changes sign when a point is reflected across the x-axis. The reflected point is (-3, -7).