Which of the following is a principle against discrimination in the sale and rental of properties to minorities?

Which tax is the single largest source of a state's income?

A) property tax B) income tax C) estate tax D) general sales tax E) gasoline

North Korea signed the _____ in 1985.

A. Sino-North Korean Mutual Aid and Cooperation Friendship Treaty B. Patent Cooperation Treaty C. Treaty on the Non-Proliferation of Nuclear Weapons D. Treaty of Bern E. Treaty of Amity and Cooperation in Southeast Asia