Answer:

Step-by-step explanation:

B=h+4, m=h-2 now we are told
b+h+m=11, using b and m found above in this equation gives us:
h+4+h+h-2=11
3h+2=11
3h=9
h=3 and since b=h+4, m=h-2
historical=3, biography=7, mystery=1
I did this in school: it would be A, C, and D
Answer:
The GCF should be 9
Step-by-step explanation: