Final answer:
To determine how much more the piece of rope costs than the flat-head bolt, subtract the cost of the bolt ($0.23) from the cost of the rope ($0.70), which results in a difference of $0.47.
Step-by-step explanation:
The question asks us to determine the difference in cost between a piece of rope and a flat-head bolt. To find how much more a piece of rope costs than a flat-head bolt, we simply subtract the cost of the bolt from the cost of the rope. According to the price list provided:
- Piece of rope: $0.70
- Flat-head bolt: $0.23
Now we perform the subtraction:
$0.70 (rope) - $0.23 (bolt) = $0.47
Therefore, the piece of rope costs $0.47 more than the flat-head bolt.