Answer:
xy (less than or equal to sign) 4
B -222
Because he fell/descended 222 meters. And falling or going down produces a negative integer. Also, if you were actually doing the math to try to find where Oliver is currently located, you wouldn't add 222, or 0, or subtract -444. You would subtract 222.
In addition, be aware that the question is asking you an integer to represent a situation, not the answer of where Oliver is.
Answer: 9
Step-by-step explanation: 9 x 9 equals 81 and 81 add 9 is 90