As runners in a marathon go by, volunteers hand them small cone shaped cups of water. The cups have a 3 cm radius and a height of 8 cm. Abigail sloshes 2/3 of the water out of a cup before she gets to drink any. What is the volume of the water remaining in Abigail‘s cup.

Which of the following best describes the purpose of a nation’s boundaries? a. to limit the movement of goods and people b. to make it easier for cartographers to create maps c. to make the movement of goods and people easier d. to prevent other countries from invading territory