What is the absolute value of 4?

(a)  

What is |50|?

(a)  

-5 + 4 - 2 + 8

(a)  

9 + 1 - 12 - 2

(a)  

5 - 8 + 4 - 7 + 5

(a)  

2 + 3 - 7 + 4 - 2

(a)  

8 - 12 + 4 - 5 + 9

(a)  

7 + 2 - 12 + 4 - 7

(a)  

What is |-8|?

(a)