i cant understand the question 
Sorry pls explain 
 
        
                    
             
        
        
        
Answer:
a. +150, b. -15 yards, c. -75 feet, d. +35 degrees, e. -$24.75
Step-by-step explanation:
You are just evaluating the (-) and (+) symbol based off the term being used. If they are gaining something its a (+) if its a loss in any way shape or form it is a (-)
 
        
                    
             
        
        
        
The order is 1/4, 25%, 1/3, 40%
        
             
        
        
        
1800/3 = 600
Every pound covers 600 square feet
8400/600 = 14
<span>14/4 = 3.5 (round up) so it would become 4.
</span>
You would need 4 bags. 
I hope this helps!