Choose the One Alternative That Best Completes the Statement or Answers

question 288

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
-The function $f ( x ) = 300 ( 0.5 ) ^ { x / 90 }$ models the amount in pounds of a particular radioactive material stored in a concrete vault, where $x$ is the number of years since the material was put into the vault. Find the amount of radioactive material in the vault after 200 years. Round to the nearest whole number.

• A) 333 pounds
• B) 220 pounds
• C) 68 pounds
• D) 64 pounds

---

Definitions:

Reproduction

The biological process by which new individual organisms are produced from their parents, essential for the survival and continuation of a species.

Amphibians

A class of cold-blooded vertebrates that includes frogs, toads, salamanders, and newts, characterized by life stages both in water (as larvae) and on land (as adults).

Lampreys

Jawless fish known for their distinctive, toothed, funnel-like sucking mouth, often considered parasites or predatory on other fish.

Jawless Fish

A group of vertebrates known for lacking jaws, including lampreys and hagfish, representing the earliest fish in the evolutionary history.