Explanation:
1. The first sentence is more important because the second sentence tells how they got there which would eventually lead to the second sentence which is why it is more important.
2. First it says that julie knows the importance of happiness leading up to how she is a giving person which would eventually say something giving that she did probably making her happy and to the receiver.
3. Sam travels in the front seat of the car might have been said to show that they tried to prevent him getting Carsick because it helps.
I hope this helped you!
