Which expression correctly uses the formula to find the location of point r?

Which of the following best describes asbestosis?

Compounds which are found naturally in the earth are called: a. ores b. composites c. rocks d.minerals

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