Everything is in the picture

Answer:
0.03 meters
Step-by-step explanation:
This one, luckily, does not require much work.
Think of it like subtracting whole numbers. [tex]8-5=3[/tex], right? So if we have a piece of wood that is 0.08m long, and we saw off 0.05m - what do you think that's going to be? 0.03m, of course!