Evaluate the following expression. −5(−20÷2)⋅ 8(−3) −4 since the expression can be rewritten as −5(−10)⋅ −24 −4 , use the rules for multiplying and dividing integers to evaluate the expression.

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