Answer:
25
Step-by-step explanation:
Sqrt 25 = 5
5^2 = 25
 
        
                    
             
        
        
        
The radius of a circle is found by doing this : 
circumference ÷ 6.28 = radius
The circumference here is 17.27 feet :
circumference ÷ 6.28 = radius
so
17.27 ÷ 6.28 = 2.75
The radius of the circle is 2.75 feet.
        
             
        
        
        
Answer:
12 pencils
Step-by-step explanation:
let no. of pencils bought be x.
54 - 0.75x - 2.50 = 42.50
9 = 0.75x
x = 12
Topic: algebraic equations
If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!
 
        
             
        
        
        
Answer: 6
 
Step-by-step explanation:
Because corresponding sides of similar triangles are proportional,

 
        
             
        
        
        
Answer:
y+4=2(x-4)
Step-by-step explanation:
y-y1=m(x-x1)
y-(-4)=2(x-4)
y+4=2(x-4)   point slope form