a discount electronics store normally sells all merchandise at a discount of 2 percent to 50 percent off the suggested retail price . if , during a special sale , an additional 20 percent were to be deducted from the discount price , what would be the lowest possible price of an item costing $ 100 before any discount ?
"original price : 100 $ max first discount = - 50 % thus : 100 â ˆ — ( 1 â ˆ ’ 50 / 100 ) = 50 second discount on the discounted price = - 20 % thus : 50 â ˆ — ( 1 â ˆ ’ 20 / 100 ) = 40 answer b ."
multiply(100, divide(add(50, 20), const_100))