The correct option is D Stacy has more money than Amy.
Amy has six $100 bills and five $10 bills.
Six $100 bills =6 times 100=$600
Five $10 bills =5 times 10=$50
So, value of six $100 bills and five $10 bills
=(600+50)=$650
Stacy has seven $100 bills and four $10 bills.
Seven $100 bills =7 times 100=$700
Four $10 bills =4 times 10=$40
So, value of seven $100 bills and four $10 bills =(700+40)=$740
So, Stacy has more money than Amy.