Fast pls A submarine is diving to a total depth of 45 feet. It descends 15% of the total depth in 1 minute.

How deep will the submarine be after 4 minutes?
−6.75 feet
−27 feet
−13.5 feet
−20.25 feet

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score