Answer:
-7
Step-by-step explanation:
-3 - (4) = ?
Remove parentheses:
=  -3 - 4 
Subtract the numbers: 
= -7
 
        
                    
             
        
        
        
Answer:
The height of this cylinder = 9.55 ins
Step-by-step explanation:
Volume cylinder = pi * r² * h = 30 ins
r=1
 pi * r² * h = 30 
 pi * 1² * h = 30 ins
 h = 30/pi
h = 9.55 ins
 
        
             
        
        
        
1st : Find the volume of the rectangular block:
12 × 10 × 20 = 2400 cm^3.
2nd : Find the volume of a cylinder

Where r is radius & h is height.
so: 

= 76.02654222 cm^3
Lastly, divide the volume of the rectangular block by the volume of the cylinder
2400 ÷ 76.026 = 31.5679226
You can't round it up so the answer is F) 31
 
        
        
        
4  x+9=13 X=4 subtract 9 from the 9 and 13 and 13-9 =4 so x=4
        
             
        
        
        
The answer should be E. 223- 6s = 0