Answer:
26,664 ounces.
Explanation:
First, we need to transform all magnitudes in ounces units.
6666 pounds equals 106656 ounces. So, Xan weighs 116,655 ounces
(Since that, 106656 + 9999 = 116, 655).
8888 pounds equals 142208 ounces. So, Katie weighs 143,319 ounces.
(Since that, 142208 + 1111 = 143,319).
Then, we can subtract both weights, because they have same units:
Katie weigh - Xan weigh = (143,319 - 116, 655) ounces = 26,664 ounces.
Therefore, the difference between them is 26,664 ounces.