Answer:
its 84 but tysm thats so sweet
Step-by-step explanation:
The answer is A because the equation is 40/10 which would give you 4 and it asks m/s.
The answer to your question is Y
The triangles are isosceles. The following notation are for the angles. For example ABD is refer to the angle located in the B vertex, formed by the segments AB and BD.


Then

Answer:
oh thank you!
i hope you have a good day/night