Mixed operations word problems

Jane wants to split her collection of 1470 stickers into 21 groups, since she has 21 friends. How many stickers will each one of her friends get?

There were 13 cars in the parking lot. 5 cars left and 11 cars arrived within an hour. How many cars were in the parking lot after one hour?

On Sunday Saman had 123 followers on a social media platform. On Monday he lost 4 followers. On Tuesday 37 more people started following him. How many followers did Saman start his Wednesday with?

Lina and Katya went to the farm. Lina picked 13 apples. Katya picked 3 times as many. How many apples have they picked altogether?

An artist has released a new song. On the first day the song was downloaded by 120,000 people. On the second day the song was downloaded by 245,000 more people. How many people have downloaded the second over the two days?