The answer is (42 times 30) divided by 100
To find the total discount on a $42.00 radio with a 30% discount, multiply $42.00 by 0.30, which equals $12.60. The expression for this calculation can be represented as Discount = 42 * 0.30 or Discount = (42 * 30)/100. This means the total discount amount is $12.60.
;