How can 1/4x − 3 = 1/2x + 8 be set up as a system of equations?

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

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