The value of X is either -1 or 7. By using distance formula.
        
             
        
        
        
Answer:
0.1
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
2
Step-by-step explanation:
8 × .75 = 6lbs
she'd need 6lbs so she'd buy two bags of 5lbs
 
        
             
        
        
        
Answer:
B
Step-by-step explanation:
So we have the formula: 

And we want to solve it for r. 
So, let's first divide both sides by π and h. This will cancel out the right side: 

Now, take the square root of both sides: 

And we're done!
Our answer is B. 
I hope this helps!
 
        
                    
             
        
        
        
Answer:
5(d - 2) = 45
Step-by-step explanation:
Solve the given equation for d
3(d + 1) = 4(d - 2) ← distribute parenthesis on both sides 
3d + 3 = 4d - 8 ( subtract 3d from both sides )
3 = d - 8 ( add 8 to both sides )
11 = d
Then
5(d - 2) = 5(11 - 2) = 5(9) = 45