Bill is building a model of a square pyramid for a class project. the side length of the square base is 10 inches and the slant height of the pyramid is 15 inches. what is the surface area of the model pyramid?

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