First you subtract the 30 from 300 and than 270/45 and your answer will be A. 6
        
             
        
        
        
Answer:
Step-by-step explanation:
Circumference = 2πr
Let's set the equation equal to the formula:
16 = 2πr
16/2 = πr
8 = πr
r = 8/π
 
        
             
        
        
        
Answer:
-0.25
Step-by-step explanation:
1-3= -2 
9-2= 8
-2/8= -0.25
 
        
             
        
        
        
First, set the equation in exponential form. 
x=logbY  to  b^x=Y
x=log44.  so x=x, b=10, Y=44 
10^x=44  
I know that 10^1=10, 10^2=100, and 10^1.5=31.6 so x should be between 1.5 and 2. 
The answer is x=1.64.  
        
             
        
        
        
Answer:
n = 4
Step-by-step explanation:
Given
10n + 2 = 7n + 14
Collect terms in n on the left side and numbers on the right side
Subtract 7n from both sides 
3n + 2 = 14 ( subtract 2 from both sides )
3n = 12 ( divide both sides by 3 )
n = 4