Answer:
14/63
Step-by-step explanation:
(2*7) / (9*7) = 14/63
 
        
             
        
        
        
Answer:
Not sure
Step-by-step explanation:
 
        
             
        
        
        
Answer:
25 necklaces
Step-by-step explanation:
each necklace brings $16 profit (20-4=16)
400÷ 16= 25
so, at 25 necklaces, there will be enough profit to break even after paying for the advertising. 
 
        
             
        
        
        
Answer:
Total surface area of the given figure is 246.75 square mile.
Step-by-step explanation:
Surface Area of the given figure = Lateral surface area + Area of the base
Lateral surface area of the figure = Sum of the areas of 5 triangular surfaces
                                                         = 
                                                         = 
                                                         = 162.75 mi²
Surface area of the pentagonal base = 84 mi²
Total surface area of the figure = 162.75 + 84
                                                     = 246.75 mi²
Therefore, total surface area of the given figure is 246.75 square mile.
 
        
             
        
        
        
Answer:
1/6 
Step-by-step explanation:
2/3 of the bedspread is covered in race cars , therefore
1/3 of the bedspread is covered in stripes
2/4 of those 1/3 are red stripes 
to find the fraction of the red stripes 
2/4 x 1/3 = 2 / 12 = 1/6