A certain type of radioactive isotope decays such that its mass, in grams, , after days can be modeled by the function . Which of the following statements is the best interpretation of the number 0.92 in this context?
The initial mass of the isotope is 0.92 grams.
The mass of the isotope decreases by 92% each day.
The mass of the isotope decreases by 8% each day.
The mass of the isotope is 92 grams after 1 day.
