Answer:12
Step-by-step explanation:
 
        
             
        
        
        
Answer:
12 unit squared....................
 
        
             
        
        
        
Answer:
$235.2
Step-by-step explanation:
Given data
Principal=  $5,600 
Rate= 4.2%
Time= 1 year
The expression for the simple interest is given as
SI= PRT/100
substitute
SI= 5600*4.2*1/100
SI= 23520/100
SI=$235.2
Hence after 1 year he will pay $235.2