Final answer:
Ashley made $11 per hour before the increase.
Step-by-step explanation:
To find out how much Ashley made per hour before the increase, we need to reverse the 25% increase. Let x be the amount she made per hour before the increase. The equation to represent the increase is: x + 0.25x = 13.75. Simplifying this equation, we get: 1.25x = 13.75. Dividing both sides of the equation by 1.25, we find that x = 11. So, Ashley made $11 per hour before the increase.