Final answer:
The daughter's solution is analyzed and the true statements are identified.
Step-by-step explanation:
The statements that are true are as follows:
- The equation 2n = p should be 2p = n.
- The equation 6p 3n = 18 should be 6n 3p = 18.
The actual cost per pound of onions, potatoes, or any other item is not provided in the given information, so we cannot determine the actual cost per pound based on the given data.
Therefore, the correct statements are:
- The equation 2n = p should be 2p = n.
- The equation 6p 3n = 18 should be 6n 3p = 18.