Question: Use the exponential decay model, A- Ao em to solve the following. The half-life of a certain substance is 23 years. How long will it

Use the exponential decay model, A- Ao em to solve the following. The half-life of a certain substance is 23 years. How long will it take for a sample of this substance to decay to 80% of its original amount? It will take approximately for the sample of the substance to decay to 80% of its original amount (Round to one decimal place percent per year years percent

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