Answer:
34.8
Explanation:
Cross multiply and divide will help you find the solution.
Discounted price: 60% / 100% and X / Radio:$58
Put them side by side and multiply 58 by 60 then divide by 100 and that will be the amount the discounted item is, we are not using the 40 because thats the amount that is taken off of the radio not the cost of the discounted radio itself.