<u>Answer:</u>
 
<u>Step-by-step explanation:</u>
The formula for volume of a cylinder is as follows:

where:
• r = radius (? cm)
• h = height (7 cm).
Substituting the values into the formula:

Now solve for  :
:
⇒ 
⇒ 
⇒ 
 
        
                    
             
        
        
        
Answer:
4x + 19 = -21
Step-by-step explanation:
4(-10) + 19 = -21
-40 + 19 = -21
 
        
             
        
        
        
Answer:
45tf+47tf=92tf
Step-by-step explanation:
I hope this help you out♊♊ tell me is this correct♊♊♊
 
        
             
        
        
        
C; On this line, any two values have to add to 2.