Pre-Cal question URGENT?

P dizzle

New member
Please answer this question
Use the formula, A=Ao(e)^kt to solve.( the e is for the natural logs, not a variable) The half life the element is 8 days. There are 100 grams of the element initially.

Please show all work!!

A) how many grams are left after 16 days?
B) how many grams are left after 25 days?
C) when will there only be 1 gram left
 
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