Mae sells newspaper subscriptions door-to-door. In addition to a fixed salary, she earns a commission for each subscription that she sells. The table shows Mae's total earings, y (in dollars), from selling x newspaper subscriptions:

Subscriptions Sold and Earnings
Subscriptions Sold (x)
1,2,3
Total Earnings (y)
135, 145, 155
Which equation best shows the relationship between x and y? (4 points)

The best equation that shows the relationship between x and y is:

y = 10x + 125