The cashier at a Red Robin charged Deborah $64 for 16 burgers. The price of a burger is $4. Determine whether Deborah paid the correct amount of money.
yes; the cost of 16 burgers is $64
no; the cost of 16 burgers is $60
no; the cost of 16 burgers is $58
no; the cost of 16 burgers is $56