Question

helpppp

Answer 1

Interesting problem. What have you done so far? You'll need a good undrstanding of "half-life" to solve this problem. Have you looked up "half-life?"

Answer 2

i wrote a wrong answer for the last problem i was doing becuae i didnt get to the answer

Answer 3

Sorry about that. Please answer my second question.

The way this problem has been written is unusual. You might want to consider using an alternative approach to solve this problem, and then return to the actual question asked.

Again: What does "half-life" mean in this context?

Answer 4

i have no idea i get half of 60?