amy paid 78.42 for a pair of running shoes during a 25% off sale what was the regular price?

So the $78.42 represents 75% of the regular price.

Regular price = 78.42/.75
= ...

To find the regular price of the running shoes, we can use the following steps:

Step 1: Let's assume the regular price of the running shoes is represented by the variable "x".

Step 2: During the 25% off sale, Amy paid 78.42, which means she only paid 75% (100% - 25%) of the regular price.

Step 3: We can set up the following equation to represent this:

0.75x = 78.42

Step 4: To solve for "x", we divide both sides of the equation by 0.75:

x = 78.42 / 0.75

Step 5: Evaluating the above expression, we find:

x ≈ 104.56

Therefore, the regular price of the running shoes is approximately $104.56.