Answer:
AB = 47 (answers may vary)
Step-by-step explanation:
BC = 35
AC = 52
C, in fact, can be any number you choose less than 35;
For example,
C= 20
35 - 20 = 15
B = 15
52 - 20 = 32
A = 32
AB = 32 + 15 = 47