Trenches were dug in a zigzag pattern so that if an enemy entered the trench, he could not fire straight down the line. ... The main trench lines were connected by communicating trenches, allowing for the movement of messages, supplies, and soldiers and were lined with barbed wire.
Answer:
0.0126
Explanation:
well 0.42 × 0.03 equals 0.0126
The answer is b, a union general who later become the 18th president on the united states.