Describe how the following transactions would affect U.S. exports imports and net exports

Describe how the following transactions would affect U.S. exports, imports, and net exports:

Students in Prague flock to see the latest movie from Hollywood.

Mrs. Jones in Philadelphia buys a new Volvo.

The student bookstore at Oxford University in England sells a copy of a U.S. printed/authored textbook

A Canadian citizen shops at a store in northern Vermont to avoid Canadian sales taxes.

An American art professor spends the summer touring museums in Europe.