Which items are discounted less than 15%? select all that apply. a) $199.99 smartphone on sale for $167.99 b) $28,100 car on sale for $25,750 c) $58 jeans on sale for $50 d) $1.99 song download on sale for $1.75 e) $129 pair of shoes on sale for $105 ( show your work if possible! )