Which of the following is a example of a fixed expense

Fixed expenses are those expenses that do not change when there is a change in production or sales level. Expenses like rent, insurance, payment on loans, management salaries, advertising are examples of fixed expenses.

b) to encourage free trade

industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations.