A radioactive substance has a half-life of 5 million years. What is the age of a rock in which 25% of the original radioactive atoms remain? You must show your work or explain how you came up with your answer for full credit.

Imagine a correspondence between thomas hobbes and john locke. first, write a letter from hobbes to locke in which hobbes argues that absolute monarchy is the ideal form of government. then write a second letter from the perspective of john locke in which he answers and refutes hobbes’s argument. even though both hobbes and locke lived during the 17th century and would not have been aware of the enlightened despots the 18th century, be sure to mention how hobbes and locke might have felt about the possibility of these rulers.

Along with removing drugs from the body, the kidneys also a. balance ph levels b. release hormones that regulate blood pressure c. release hormones into the stomach d. a and b

Aschool principal trying to find out if parents will buy new playground equipment shows digital leadership by