5. Kenmore offers a 20/15/10 discounts on its horizontal freezer unit which is sold at its affiliated retailers for $1450. a. Calculate the invoice price using the traditional method (successive discount) Also, show how much would the invoice price be had the discount been: b. additive c. average d. What is the Net Cost Rate Factor (NCRF) using the product-of-comp method)? e. What is the invoice price using this NCRF? f. Calculate the Net Cost Rate Factor (NCRF) if the invoice price is $798. g. What is the invoice price if the Single Equivalent Discount (SED) is 50%