A bookstore buys a novel for $⁢10 and marks it up by 80% During a special promotion, the store offers a 20% discount on the marked-up price. If 50 novels are sold during the promotion, what is the total revenue?

An 80% markup on the $10 cost adds $8, so the marked-up price is $18. A 20% discount leaves 80% of that price: $18 × 0.80 = $14.40 per novel. For 50 novels, the total revenue is $14.40 × 50 = $720, so the correct choice is 720 dollars.

AI-written and checked against the verified answer.