A department store holds a year-end clearance sale that includes a 9.1% discount on cosmetics. Find the sale price of a bottle of perfume if its original price was $71.29.
Answer (1)
100% = $71.29
after 9.1% discount that leaves us with 100% - 9.1% = 90.9% of the original price as sales price.
90.9% = 100% × 0.909 = 71.29 × 0.909 = 64.80261
the sales price is then $64.80 . ;
