Answer:
23 Seashells.
Explanation: First subtract the amount of shirts from the total purchase, then do the math until the seashells add up to the $47.60 price, and once again subtract the half price from the total price, then you have your answer.
On August, 24, 2006
when Pluto's status was downgraded from a full sized planet to a dwarf planet by the International Astronomical Union.
