Mecca and Medina at the start of the 7th century
<span>The main motivation is to stave off the influence of the Soviet Union by policing the world. The United States of America didn't wish for communism to spread nor for the Soviet Union's power to grow and become more persuasive.</span>
Taxation without Representation
The correct answer is D) toothpaste and toothbrush.
<em>What is not an example of substitute goods are toothpaste and toothbrush.</em>
In economics, when we are talking about substitute goods we are referring to two alternative goods that could be used for the same reason or purpose.
In the case of this question, you cannot substitute the toothbrush for the toothpaste. You need the two together to brush your teeth. You can do it with one or the other. In the other options, yes, you can substitute margarine for butter or a motorcycle for a car, both are means of transportation.
