Question

A $140 car stereo is marked up 50% and then discounted 50% will the final price of the car stereo be #140

Answer 1

Yes, because adding 50 and subtracting 50 is equal to 140+50-50.
+50-50=0
Now, you have 140+0=140.

Hope this helped☺☺

Answer 2

If the stereo is marked up 50%, the new price is $210. Then, if it is reduced by 50%, the final price is equal to $105.