How to find sin M/ cos K ? And what’s the answer?

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?

What is the volume of this square pyramid?

What is r i 4.5+10r=-6.5 with work pls