Final answer:
The original price of the monthly carwash pass before the 15% discount was approximately $50.59.
Step-by-step explanation:
Calculating the Original Price Before Discount
To find the original price of the monthly carwash pass before the 15% discount, we need to recognize that the current price of $43 represents 85% of the original price, because 100% - 15% = 85%. To calculate the original price, we will divide the current price by 0.85 (which is 85% in decimal form).
- Divide the current price $43 by 0.85.
- Original price = $43 / 0.85 = $50.59 (rounded to two decimal places).
The original price of the carwash monthly pass last week was approximately $50.59.