Original price: $5 sale price: $3.25, please find discount percent

Can you guys plz answer this question in order and quickly plz i will give 30 points

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

An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.