To solve the problem, the correct equations based on the information provided are:
- \(3.50P + 1.50S = 800\) (This represents the total revenue made from selling pizza slices and sodas.)
- \(P + S = 344\) (This represents the total number of pizza slices and sodas sold.)
Thus, the correct response is:
3.50P + 1.50S = 800 and P + S = 344