Answer:
Positive
Step-by-step explanation:
-13 plus positive 20 equals positive 7
 
        
             
        
        
        
Answer:3600 Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Brooke has 9 problems for social studies.
Step-by-step explanation:
I used addition. I did 15 + 5 = 20. and after that I just knew that you have to add 9 to 20 to get 29, so I figured out that she has 9 social studies problems.
 
        
             
        
        
        
Answer:
-7/25
Step-by-step explanation:
Could be in fraction:
-7/25
or in decimal expression:
-0.28
 
        
             
        
        
        
For volume of a prism, the general rule is multiply the area of the base by the area of the height. For example, for a triangular prism, the volume would be (1/2)b*h*a if you set a = height of the prism and h = height of the triangle from the formula (1/2)bh, which is the area of a triangle.