Answer: x = 5y/ 2y + 4 
Step-by-step explanation: coz I juss know
 
        
             
        
        
        
Is this what you were asking for?
 
        
        
        
Answer: 70.74 
Step-by-step explanation:
A Nonagon has 9 equal sides, and each side of the given is 7.86
So 7.86 multiplied by 9 is 70.74
 
        
             
        
        
        
<h3>A is the answer EEEE</h3>
 
        
        
        
Answer:
85%
Step-by-step explanation:
There are two ways to solve this.
1. You can find the percent of birds, and then subtract that from 100%. 
To find the percent of birds, divide 45/300 or make the denominator 100 by dividing both parts by 3.
45/300 (as a fraction)
=15/100
That is the same as 15%.
Subtract that from 100% and you get 85%.
2. You find the number of non-bird animals and make that a percent.
300-45=255 non-bird animals
255/300 (as a fraction)
=85/100
That is the same as 85%.
So either way, the answer is 85%.