This can be solved using a ratio. The ratio is: 13/20=x/60 this would then become 20x= 780  divide both sides by 20 and you get x=39. the answer is 39
        
                    
             
        
        
        
Answer:
7 Decenas = 70 Unidades espero que te ayude 
Step-by-step explanation:
 
        
             
        
        
        
the answer is supposed to be 132 at the most of a
for b it is 165
 
        
                    
             
        
        
        
Answer:
The answer is √10,−√10 (award brainliest)
Step-by-step explanation:
Take the root of both sides and solve.
Exact Form:  x  = √10,−√10
Decimal Form:  x  =   3.16227766...,−3.16227766...
for more detailed explanation comment down below this post and ask
 
        
             
        
        
        
Answer:
$493.75
Step-by-step explanation:
- 25 × 19.75 = $493.75
I hope this helps!