A customer uses a $20 bill at a self check-out register to pay for products totaling $14.50. The customer is concerned they did not receive the proper change. How much money should they have received back from the automated register?

$5.50

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the customer started with $20. she spent $14.50, round $14.50, to $15.00.

$20 - $15 = $5.00
add the $0.50 from rounding $14.50.
$5.00 + $0.50 = $5.50

My work time starts at 11:00 am. my 30 minute Break time is at 4:00pm. I clock back into work at 4:30pm. and my shift is over at 6:00pm. How many total hours did I work for the day?

To find out how much money the customer should have received as change, we need to subtract the total cost of the products from the amount the customer paid.

Subtracting $14.50 from $20.00 will give us the amount of change the customer should receive back:

$20.00 - $14.50 = $5.50

So, the customer should have received $5.50 in change from the self check-out register.