Answer:
So, a line segment is a piece or part of a line having two endpoints. Unlike a line, a line segment has a definite length. The length of a line segment can be measured either in metric units such as millimeters, centimeters, or customary units like feet or inches.
Step-by-step explanation:
Let pc be pencils, and pn be pens. Then:
5pc+pn=250
pc+2pn=185
Then
10pc+2pn=500
pc+2pn=185
9pc=315
pc=35
pn=75
Pencils are 35 cents; pens are 75 cents
A^2+b^2=c^2
there for 5^2+14^2=221
then you take the sqr root of 221 to find c
the square root of 221 is 14.86606875
which rounds to 14.9
so the answer is D