27,057,324,083 i am pretty sure
Answer:

Step-by-step explanation:
Use a cofunction identity on the right hand side or left hand side...
So
.
We have the equation:

Make the above replacement:

Since cotangent has period 180 degrees, we can also write this as:

So solving the following will give us a set of solutions for
:

Add
on both sides:

Subtract 10 on both sides:

Divide both sides by 2:

Symmetric property:

Answer: The first/ third one
Step-by-step explanation:
Answer:
110
Step-by-step explanation:
(9x6) + (7x8) = 110
There are 110 chairs in total, hope this helps!
No is my answer, But i dont know if the is correct or not