The radioactive element carbon-14 has a half-life ofSTSU years. A scientist determined that the bones from a mastodon had lost 74.8% of their carbon-14. How old were the bones at the time they were discovered? The bones were about years old. (Round to the nearest integer as needed.) The radioactive element carbon-14 has a half-life ofSTSU years. A scientist determined that the bones from a mastodon had lost 63.6% of their carbon-14. How old were the bones at the time they were discovered? The bones were about E9226 years old. (Round to the nearest integer as needed.) Solve the following logarithmic equation. log 3(C + 18) -log 3(C + 8) =log 3 C Select the correct choice below and, if necessary, fill in the answer box. O A. The solution(s) is/are (Simplify your answer. Type an integer or a fraction. Use a comma to separate answers as needed.) O B. The solution is not a real number.