Answer:
x=21
Step-by-step explanation:
x-7=14
add  7 to both sides
x=21
 
        
             
        
        
        
Answer:

Step-by-step explanation:
The area of a rectangle is given by  . Therefore, we can set up the following inequality:
. Therefore, we can set up the following inequality:
 .
.
Solving this inequality, we have:
 .
.
Therefore, the largest length Carmen's painting can be is  .
.
 
        
             
        
        
        
Answer:
x=4
Step-by-step explanation:
-(7-4x)=9
-7+4x=9
4x=16
x=4
 
        
                    
             
        
        
        
Multiply .03 by 42
.03×42=1.26
1.26kg + 42kg= 43.26
Answer: 43.26kg 
        
             
        
        
        
5.40. It would be 5.38 but you round up to 5.40