A segment has a midpoint at (2,4) and endpoint at (5,-9) what are the coordinates of the other endpoint

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !