The graph shows the number of hours Stan worked on a school project. For how many hours in total did he work on the project?
Answer Choices
A. 6
B. 2
C. 8
D. 9
E. 10
The graph shows the number of hours Stan worked on a school project. For how many hours in total did he work on the project?
Answer Choices
A. 6
B. 2
C. 8
D. 9
E. 10