<span>The trigonometric function cosecant is written as csc θ. For acute angles, csc θ can be found by the SOHCAHTOA definition, shown below on the left. The circle definition, a generalization of SOHCAHTOA, is shown below on the right. f(x) = csc x is a periodic function with period 2π.</span>
        
             
        
        
        
I did some research, and I think it's the first one. PLEASE CORRECT ME IF I'M WRONG!!
Here's why, because the first segment extends from 0 to 1. So, x has to be 0 or larger, but less than 1 or 1.
        
             
        
        
        
Your answer is D because 10*2 is 20 and 6*2 is 12 so 12 out of the next 20 customers will purchase a sandwich.
        
                    
             
        
        
        
1250x.08= 100+1250= 1350 / 120 is 11.25 so 11 months of paying $120 leaves a $30 12th month payment.
        
                    
             
        
        
        
[ Answer ]

[ Explanation ]
Area = 1420
Width = 
Area For Rectangle: Length · Width
Use division to find width:
1420 ÷ 
Convert mixed numbers to fractions:
1420 = 
 =
 = 
 ÷
 ÷ 
Use mixed multiplication:

= 
Simplify:
= 
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