Easy simple problem i wanna ask just because 1+1=?

Ihave trouble finding the nth term of a linear sequence

How can constraints be used to model a real-world situation?

Jack is considering a list of features and fees for current bank: jack plans on using network atms about 4 times per month. what would be jack’s total estimated annual fees for a checking account with direct paycheck deposit, one overdraft per year, and no 2nd copies of statements? a. $44 b. $104 c. $144 d. $176