How do i do scale factor problems like so? answer the question and please explain

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?

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

If f(x) = 5х – 2 and g(x) = 2х + 1, find (f – g)(x).