"What is the length of stack J K with bar on top ? Round to the nearest tenth of a unit.

A.

4.5 units

B.

5.4 units

C.

6.0 units

D.

12.8 units"

What is the length of stack J K with bar on top ? Round to the nearest tenth of a unit. A. 4.5 units B. 5.4 units C. 6.0 units D. 12.8 units class=