Add (7x6 + 10x2 − 10) + (3x6 − 6x3 + 4). 10x6 + 4x2 − 6 10x6 + 4x3 − 6 10x6 − 6x3 + 10x2 − 6 10x6 + 10x2 − 6x3 + 6

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