True or false? if four points are collinear, they are also coplanar

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

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