Question

please answer my questions​

Answer 1

Step-by-step explanation:

1:

O = 12

A = 8

B = 7

AB = 3

rarest:AB

Common: O

2:

0-5:5

5-10:10

10-15:11

15-20:10

20-25:1

25-30:1

30-35:2

Hope it is helpful to you

please mark me brainlist

Answer 2

Answer:

i hope it's helpful for you. and don't forget to mark as brianlist.