Which of the following statements are correct? (Select all that apply.) c 1 2b xab zab za za (+* +za+b) (1 + 3") (2)' = (z")" am None of the Above Radioactive decay can be described by the following equation In A = In Ao - kit where Ag is the original amount of the substance, A is the amount of the substance remaining after time t, and k is a constant that is characteristic of the substance. For the radioactive isotope lead-214, k is 2.59 x 10-2 minutes If the original amount of lead-214 in a sample is 54.1 mg, how much lead-214 remains after 30.8 minutes have passed? mg