A person makes a cup of tea. y=68+132e^-0.05t where t is the number of minutes since the person made the tea. What is the temperature of the tea when...

A person makes a cup of tea. y=68+132e^-0.05t where t is the number of minutes since the person made the tea. What is the temperature of the tea when it was made? After five minutes, what is the temperature? The tea is lukewarm at a temperature of 98.6. If the person waits for the tea to be lukewarm, how much time has passed since the tea was made?