Answer:
18 27 36 you just have to do your count byes for 9
Hey. Why are you so worried. Here is the answer. There is a very small problem.It is that the decimal point is not added.
Answer:
See explanation below.
Step-by-step explanation:
Let's say,
represents the sale price of radio.
Then the marked price of the radio is 
The cost price of the radio is 
The discount is simply 25% because the radio is being sold at 25% less then the marked price.
The gain percent is given as:

The radio is being sold at 12.5% gain.
Best Regards!