Answer:
19
Explanation:
JH = 47 (70 - 23)
HM = 23
MK = 19 (42 - 23)
KU = 34 (81 - 47)
UC = 7 (47 - 40)
CN = 40
HM + MK = HK
23 + MK = 42
Subtract 23
MK = 42-23
MK =19
4.5m questions
5.7m answers