Question

Three friends are working at the comic book store. They start the day with $300 in the cash register. Through the day, they make a few sales, but they also take out $160 to pay some expenses. At the end of the day, they have $342.45 in the register. What were there total sales for the day?

Answer 1

300 + x - 160 = 324.45
140 + x = 324.45
x = 324.45 - 140
x = 184.45 <== sales