6. The figure shows a demand curve for Cheerios. Based on this figure, which of the following statements is correct? (a) If the price was $2 then the total demand would be 40,000 pounds. (b) If the firms want to sell at least 24,000 pounds then they need to charge more than $3. (c) The demand curve suggests that to double the amount sold, the price needs to be halved. (d) There is no demand if the price is set above $7.20. Price P. dolan per pound Demand NOOO 18009 24800 12009 40090 45003 56090 64080 73606 5030 Quantity (2 pounds of Chigrion5. There are five students who are looking to buy one second-hand textbook each. Their willingness-to-pay are $5, $6, $8, $12, and $15, respectively. Based on this information, which of the following statements is correct? (a) The student with a willingness-to-pay of $15 is the richest. (b) Their willingness-to-pay indicates an upward-sloping demand curve. (c) To sell three books, the maximum price that can be charged is $8. (d) If a seller is one of many identical sellers and his reservation price is $8, then he is guaranteed to sell his textbook