B=t-am is the correct answer:)
The absolute value of 4/13 is 4/13 because when you put something in absolute value it becomes positive and sense this is already positive it stays. hope this helps :))))
8/4=2
12/4=3
16/4=4
20/4=5
24/4=6
28/4=7
32/4=8
36/4=9
40/4=10
Your answer would be C. 9