Charles 1 was executed for treason..
Answer:
If you the unit prices you know the cost per unit. For example, you would be able to compare possibly a price per one ounce of Dasani water and a price per one ounce of Aquafina water. This makes it super simple to compare the prices of the two brands when they are both written as a unit rate (of course, the units would need to be the same to make the comparison).
Explanation:
American colonists protested the stamp act because it was a tax imposed on them by the british parliament instead of their elected colonial legislatures. they believed it was unjust to be taxed without their consent by unelected rulers.