Short story about finally meeting your child's imaginary friend who turns out to be a serial killer

What is the meaning of this euphemism that andrew jackson used in his message to congress

The vertical height of a soccer ball can be represented by the following function, where h(x) represents the height, in feet, x seconds after the soccer ball is kicked. rewrite the function in the form that reveals the times at which the soccer ball is on the ground.

Which sentence is the most effective in stating the overall purpose of section 4, “confidentiality of user names and passwords? ”