Where does the parenthesis go to make this true? -20-5/5-15=20

Jack is considering a list of features and fees for denver 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?

Standard deviation of 19,29,21,22,23

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !