Can someone me with these questions ! 1. who is the author? how does this impact their point of view? 2.when was the letter written? what was happening in america at that time?

On friday, there were x students at the baseball game. on monday, there were half as many students at the game as there were on friday. on wednesday, there were 32 fewer students at the game as there were on friday. which expression could represent the total number of tickets sold for all 3 games?