Answer:
Alex starts with 125 and April starts with 100.
Step-by-step explanation:
Since Alex wrote an equation to show the total, y, she has saved at the end of each week, x.
![y = 20x + 125](https://img.qammunity.org/2022/formulas/sat/high-school/pnjf4qcnxmetii0lqyl13x80eynmu57n4w.png)
In order to find the starting amount of Alex, we need to put x = 0
Therefore we would get,
![y = 125](https://img.qammunity.org/2022/formulas/sat/high-school/s7cxrb6on8o48zdi0qtec12q0ee902vfs3.png)
Thus, Alex's starting amount was 125.
And since April made a graph with x = 0, and 7 = 100, this would make April's starting amount is 100.
Hense, Alex's savings amount is greater than April's.