IBRAHIM A. answered 04/03/14
Tutor
4.9
(12)
Educated Tutor For Excellent Grades in Various Subjects
12ab + 8ab + 5ab
is the same as doin 12 +5 +8 = 25
so 12ab + 5ab + 8ab = 25ab
the answer is b
Mohina A.
04/03/14