Interoffice memos have two purposes. What are they?

_____ is a philosophy in which nations promote trade by easing restrictions, including both tariff and non-tariff barriers.

Fill in the blank(s) with the appropriate word(s).

What is the WACC, for a firm with a 60/40 debt/equity split, 8% cost of debt, 15% cost of equity, and a 35% tax rate?

A) 7.02% B) 9.12% C) 10.80% D) 13.80%