53x2=106
250-106= 144
144/2=72
The length is 72cm
Food that goes down the mouth goes into the trachea I’m pretty sure and goes down the esophagus to the stomach!
The solutions are
.
Solution:
Given equation:

Add
on both sides.

-------- (1)
(given) -------- (2)
Equate (1) and (2).

Add
on both sides.


Add 5 on both sides.


Divide by 5 on both sides, we get

Taking square root on both sides, we get

Substitute
in (1).



Substitute
in (1).



Therefore the solutions are
.
Option C is the correct answer.