A scientist is studying 24 milligrams of a radioactive material that has a half-life of 2 minutes. This means that every 2 minutes, half of the radioactive material decays. Which graph best shows the relationship between time and the amount of the material that remains?

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.