x= number of belts
multiply $14.76 times number of belts sold, add $50 and set this equal to $475.00.
$14.76x + $50= $475.00
subtract 50 from both sides
14.76x= 425.00
divide both sides by 14.76
x= 28.794 belts
* since we cannot sell partial belts, round up to the next whole number
ANSWER: The store must sell a minimum of 29 belts.
Hope this helps! :)