Aretail store is offering a 20 percent discount on its electronics. what is the original price of an item that a customer buys for $120?

So, you need to increase it by 20%. so
20% of 120 is 120/5 = 24. 
add 24 to 120 = 144.
the original cost of the product is $144 as it's discount makes it 20% cheaper changing to 120. thanks for your question.

Simply add 20% to 120, to get 144. $144 is your answer. Don't forget to rate 5 stars and give me the brainliest answer! Then, I can help you with all your problems! ^-^ ~