Final answer:
To determine the original price of the camera before a 20% discount resulted in a sale price of $72, divide $72 by 0.80. The original price of the camera was $90.
Step-by-step explanation:
To find the original price of the camera before a 20% discount when the sale price is $72, you would set up an equation where the original price minus 20% of the original price equals $72. The equation would look something like this:
Original Price - (0.20 × Original Price) = $72
This simplifies to:
0.80 × Original Price = $72
Next, divide $72 by 0.80 to find the original price:
Original Price = $72 / 0.80
Original Price = $90
Therefore, the price of the camera before the discount was $90.