The ratio of the perimeters of two rectangles is 4 to 9. the perimeter of the larger rectangle is 54 inches. what is the perimeter of the smaller rectangle?
a. 13.5 inches
b. 36 inches
c. 121.5 inches
d. 24 inches

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