Which one of the following expressions is represented by the diagram?
A. 7 + 1 + (−2)
B. 7 + (−6) − (−2)
C. 7 − 1 − (−2)
D. 7 + (−6) − 3

Which one of the following expressions is represented by the diagram A 7 1 2 B 7 6 2 C 7 1 2 D 7 6 3 class=