What is scientific notation 14,200,000

Can someone me out here number 4 plz

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?

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