C. $693.33. Just round. It helps. Round 2,080 to 2,100. Then whats 30% of 2,100? It's easy just think of 21 divided by 3, which equals 7. So, 700 and the closest answers to that is $693.33. That's just the easy way instead of doing the math out. And it is also common sense that B or D wouldn't be it. So your left with C or A. :)
        
                    
             
        
        
        
Perimeter= X + Y + W. Perimeter is the sum of all sides
        
             
        
        
        
First let's multiply the whole numbers 2 and 4. Obviously that is 8. Now let's put aside the whole number and multiply fractions.
2/3 x 1/5 is equal to 2x1/3x5 so it's 2/15 which is already in simplest form. 
So your final answer is 8 and 2/15 :)
If this was helpful would you mind marking mine as brainliest please? It helps me rank up a lot!