Answer:
A = 169cm²
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
30 or 20 something
Step-by-step explanation:
 
        
             
        
        
        
Rounding to the nearest ten:
28 → 30
188 → 190
250 → 250
101 → 100
122 → 120
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Given the inequality: 
Step 1: Distribute the bracket

Step 2: Subtract 10 from both sides

Step 3: Divide both sides by -2
Note that when you divide an inequality by a negative sign, the inequality sign is reversed.
