If there is 360 grams of radioactive material with a half-life of 8 hours, how much of the radioactive material will be left after 32 hours and is the radioactive decay modeled by a linear function or an exponential function?
A22.5 grams; linear
B22.5 grams; exponential
C45 grams; linear
D45 grams; exponential
A22.5 grams; linear
B22.5 grams; exponential
C45 grams; linear
D45 grams; exponential