Answer:
B9, CF, 98, FF
Explanation:
10111001 -->B9
11001111 --> CF
10011000 --> 98
11111111 --> FF
In order to convert binary into hex decimal make pairs of 4 digits. Start making pairs of digits from right side such as if we take 10111001 then pairs will be
1) 1001
2) 1011
so 1001 in hexadecimal is 9 and 1011 is B. Repeat the same process for all the values
