show work please

Problem 3 (14 points) Use this information to answer the following questions: XYZ offers a promotional coupon with every bike it sells for $480. The coupon gives the XYZ customer an opportunity to buy a helmet that normally sells for $100 for only $70. The coupon must be redeemed within one year of the bike purchase. XYZ estimates that 90% of customers will take advantage of the coupon. How would XYZ account for the cash sale of 100 bikes sold under this promotion on January 1, 2020? Required: Calculate the discount and the estimated stand-alone selling price for the coupon. Calculate the total stand along-selling prices Prepare the appropriate journal entry. You must show a calculation of how you arrived at each amount for the journal entry