Answer:
b
Step-by-step explanation:
The difference of the helicopter and the submarine being 18.5 meters makes 18.5+-7.75=10.75
Answer:
3x^2 or 3x squared
Step-by-step explanation:
4x^2-x^2=3x^2
4x squared-x squared equals x squared
when subtracting squared it's like subtracting normal numbers