Half life can be used to solve for the amount (A) of a substance left after t time by using the following equation:
A=Av(0)⋅(12)^(t/h)
If the half life of a substance is 2 days, how long will it take for 100 mg of this substance to decay to 12.5 mg?
Select one:
A. 10 days
B. 4 days
C. 8 days
D. 6 days