The best way to measure the volume of an irregular shaped object is * Use a ruler to measure the length of each side of the object
Weigh the solid on a balance
Used the water displacement method.
Use a spring scale

this is math not history

Explanation:

porter is writing economic history because he is focusing on the cost of developing vaccines.

the results of roman expansion produced social conflict and civil war. julius caesar gained power and became a dictator but was then assassinated. the reign of augustus began a long period of imperial rule and peace in the roman empire. rome faced the problems of how to maintain peace, law, and order.

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