James defines a line segment as "a portion of a line." his statement is not precise enough because he should specify that:
a. the segment includes every point on the line
b. the segment can be part of a ray
c. the segment continues forever in both directions
d. the segment has two endpoints

D. the segment has two endpoints

Step-by-step explanation:

In math, a line is a mark that goes both ways (opposite directions) indefinitely, or forever. A line segment goes both ways, but also has two endpoints, one at the "beginning" and "end". This means is it only part of a line. All of the other answers are false or void.

13.46

step-by-step explanation:

16.80 x .20 = 13.46