Can I plz get some help

Will give brainliest if you answer question correct

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?

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?