The Model Describes the Amount of a Radioactive Substance

Multiple Choice

The model describes the amount of a radioactive substance (in grams) remaining after t hours. Which one of the following written statements best describes this population?

A) The amount of radioactive substance decreases by 24% each hour.
B) The amount of radioactive substance increases by 76% each hour.
C) The amount of radioactive substance decreases by 0.76 each hour.
D) The amount of radioactive substance increases by 24% each hour.
E) The amount of radioactive substance decreases by 76% each hour.