If a box is 16 feet by 12 feet wide how wide of a picture frame could be put inside it of it diagonally

What is always true when two whole numbers are subtracted?

What would the rule be for the reflection of y=-3

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