Answer:
the answer is 29
Step-by-step explanation:
320/80 = 4
plus 33 for free equals 37 total chairs.
cc=37
For this case we must find the perimeter of the fence, in a circular way, knowing that the perimeter of a circle is given by:

Where "r" represents the radius of the circle, in this case 
Substituting in the perimeter equation we have:

Rationalizing we have:

Taking out common factor
:

Answer:

Option C
Answer:
you have to get rid of the numbers and then get rid of the letters until only s is left
Step-by-step explanation:
4s - 13= 51
51+13= 64
4s= 64
64÷4 = 16
s= 16
You would do 9*8*7 because any 9 could take up one then 8 people are left for the other and 7 for the final one so 504 ways