4 / (1/4 - 5/2) 
4 / (1/4 -10/4)
4 / (-9/4)
4 x (-4/9) = -16/9
        
             
        
        
        
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
 
        
             
        
        
        
Answer:
517
Step-by-step explanation:
The radius of a circle is just half of the diameter (1/2d = r)
1034/2 = 517