Answer:
Step-by-step explanation:
Let the numbers are x and y.
<u>Then the equations are:</u>
- x + y = 10 (blue line)
- x - y = 2 (red line)
<u>The graph are attached with the intersection marked: </u>
Your graph should look like this
Grace would earn 7 Dollars and 4 cents in non-compounded interest. :)