7g-2h=-9. please help cant get answer

Find the solution of this system of equation -7x+y=-20 9x-3y=36

The answer is 7.2 how would you put this as money

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