Answer:
The investment has doubled in worth by the start of 15th year.
Explanation:
By the 1800s manufacturing industries in the United States
were mostly located in the East and the Midwest. This is because of the railway
systems that were developed within the area which paved the way for goods to be
delivered to different states in the United States. Aside from this, the spaces
for these areas are much wider than it is in the north and the south.
<h3>content validity - how well a test measures the behavior for which it is intended</h3>
Example -
<em>A mathematics teacher develops an end-of-semester algebra test for her class. The test should cover every form of algebra that was taught in the class. If some types of algebra are left out, then the results may not be an accurate indication of students’ understanding of the subject. Similarly, if she includes questions that are not related to algebra, the results are no longer a valid measure of algebra knowledge.</em>
Another example is that content validity can be used in a clinical or business setting
hope this helps :)