Final answer:
The difference between Ivan's valuation of the car at $45,000 and his asking price of $55,000 on Craigslist is $10,000.
Step-by-step explanation:
The question asks about the difference between the value Ivan places on his 1963 Chevrolet Corvette and the asking price he has set for it on Craigslist. Ivan values the car at $45,000, but he has listed it for sale at $55,000. To find the difference, we subtract the value from the asking price: $55,000 - $45,000 = $10,000. Therefore, the difference between the value Ivan places on the car and the price he is asking for it is $10,000.