In American football, a play is a particular strategy (either offensive or defensive) that is employed during a down of the game. Each team will have their own set of plays that are compiled into a playbook, and every member of the team is expected to have completely memorized the playbook, so they know exactly what they are supposed to do when a play is ...
I would read it as follows. Note that the dashes (-) are hyphens showing connection between spoken terms, not minus signs; I have spelled out "minus" where I would say it. Letters on their own are pronounced as single letters (i.e. "eee," "exks," "wye," "dee").
The integral from zero to one of (e to the ...
I don't know of any single verb that includes both "promote" and "demote".
One could use "change" as a verb here:
"set" could also be used as a verb, as a comment suggests. So could "alter"/
Note that "change height" includes both "...