Answer:
Step-by-step explanation:
5/8 + 3/5 =
25/40 + 24/40 =
49/40 = 1 9/40
its greater then 1
 
        
             
        
        
        
X = 4 Hope You In Joy I Did The Math My Self
        
             
        
        
        
Answer: 4 dollars for each notebook
Step-by-step explanation:
21-9= 12 
12/3=4
each notebooks costs 4 dollars
 
        
                    
             
        
        
        
Answer:
14/45
Step-by-step explanation:
So we have the fraction:

We can do this algebraically. Follow to following steps: 
Let's let this number equal to n. Thus: 

Since there is only 1 digit repeating, let's multiply everything by 10. So: 

Now, subtract n from both sides: 

On the left, substitute the number for n. On the right, combine like terms: 

All of the 1s will cancel. So: 

Subtract: 

Divide both sides by 9: 

Remove the decimal by multiplying both sides by 10: 

Reduce: 

And we're done!
Use a calculator to check: 

 
        
             
        
        
        
Answer:
To find the volume of a triangle pyramid, you would use the formula  V = 1/3AH, where A = area of the triangle base, and H = height of the pyramid or the distance from the pyramid's base to the apex.
Hope this helps!!