With two employee shifts, each will work 12 hours  (2 x 12)
With three employee shifts, each will work 8 hours (3 x 8)
With four employee shifts, each will work 6 hours   (4 x 6)
With six employee shifts, each will work 4 hours   ( 6 x 4)
With twelve employees shifts, each will work 2 hours   ( 12 x 2)
        
                    
             
        
        
        
The answer is B.33, this is because the numbers are increasing by 2's. (+2,+4+,+6, ect.)
 
        
                    
             
        
        
        
FW = PW(1+i)^N
 = $6900(1+0.039)^1
solve for FW
(sorry don't have a calculator on me rn)
        
             
        
        
        
$38.05 or more because you need a minimum of $38.10