Answer:
$20 simple interest.
Step-by-step explanation:
The simple interest that Sami earns is 4% of her deposit since she is trying to find how much she will earn in one year (given that the interest rate is 4% per annum).  

∴ Sami earns $20 simple interest in one year.
Hope this helps :)
 
        
             
        
        
        
Answer: 7.5 items 
Step-by-step explanation:
Both Karen and James had 30 stocking items. 
Karen bought 35% of her items;
= 35% * 30
= 10.5 items 
James has bought 60%;
= 60% * 30
= 18 items 
= 18 - 10.5
= 7.5 items 
 
        
             
        
        
        
7.84  <span> 56% off 14 is equal to (56 x 56) / 100 </span>
        
                    
             
        
        
        
1.2 ÷ 3 = 0.4 meters each 
0.4 meters = 40 cm 
40 cm = 400 mm 
therefore, 
Carlos must cut each piece of wood 400 mm each. 
Hope this helps and have a great day! :D
        
             
        
        
        
From the question we can deduce the formula to be 16 + 3n = 76
3n - 76 - 16
3n = 60
n = 20
20 is the answer.