To solve the problem, we need to set up two equations based on the information given:
- The total revenue equation: \(3.50P + 1.50S = 800\)
- The total items sold equation: \(P + S = 344\)
Therefore, the correct equations are:
- \(3.50P + 1.50S = 800\)
- \(P + S = 344\)
Among the provided responses, the correct one is: 3.50P + 1.50S = 800 and P + S = 344.