Porter County has a special emergency rescue team. The team is practicing rescuing dummies from a$$ smoke$-$filled building. The first$$ time it took the team $240$ seconds. Assume the learning curve rate is $90\%.$ Use the attached Learning Curve Table.

What is the total time for the first $4$ rescues $($in seconds$)?($Enter number only. Round answers to $2$ decimal places.$)$

How long will it take to perform the $16$th rescue $($in seconds$)?($Enter number only. Round answers to $2$ decimal places.$)$

How long will it take to perform the $60$th rescue $($in seconds$)?$