Record the length of the line shown in millimeters

There isn't enough information here to answer your question, but what you need to do is to take the measure of the line and then convert it to millimetres. 

One millimetre is equal to 0.0393701 of an inch. You can use this information to answer the question!

The answers are 3.c kelvin4.b liquids only

Ijust took the quiz. their is no coefficient needed. : )