The pupils followed the teacher to visit a fruit farm last week. There were 5190 mangosteens and apples in the farm. There were 960 fewer apples than mangosteens. How many apples were there?

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