A(n) ____ in the circle before a heading indicates that there are subheadings or body text below the heading.

A ________ chart is any chart where the appearance focuses on height, width, and depth

A) R-squared B) slope C) X-Y scatter D) 3D

The header node

a. simplifies deletion b. simplifies insertion c. uses only constant extra space d. two of the above e. all three of (a), (b), and (c)