Answer:
21 Feet
Step-by-step explanation:
7 yards is equal to 21 feet
 
        
             
        
        
        
Answer:
24/45 or 9/15
Step-by-step explanation:
none of these is equivalent to 6:10
 
        
             
        
        
        
Same as all the other ones like this.
Since the two figures are similar . . .
-- The ratio of of their volumes is  R³ .
-- The ratio of their surface areas is  R² .
-- The ratio of their dimensions is  R .
So  R³  is        729 / 2744 .
Take the cube root of that and you'll have  R .
Then square R and you'll have the ratio of their surface areas.
        
             
        
        
        
Answer:
x=4
Step-by-step explanation:
4x+24=8x+2x
4x+24=10x
-4x     -4x
24=6x
/6   /6
x=4