A cashier uses the expressions d + s - c to check the amount of money in her cash drawer, where d is the initial amount in the drawer, s is the amount of cash that customers pay, and c is the amount of change that customers receive. Suppose the inital amount is $125, customers pay $15.00, $18.25, and $24.00, and the amount of change returned is $1.50 and $1.95. How much money is in the cashier's drawer?
Also, How much profit did the cashier make? (Headbang)