The answer to 3 is C, because 18+15 is 33, and 33 divided into three equal groups would have 11 in each.
The answer to 4 is A, because in 11/3 3 can go into 11 3 times, with 2/3 remaining.
        
                    
             
        
        
        
Answer: 7 pigeons sitting on the branches,  5 pigeons under the tree
=12 in total
Step-by-step explanation:
Upper branch has x pigeons, lower has y.
Top branch said: "If one of you flies up to us our number will be double yours":
Well, if one of the bottom branch flies up, the top branch will have x+1 birds and the bottom will have (y−1). The top will have double the bottom, so:
x+1=2(y−1)
Top branch said: "If one of us flies down to you, our numbers will be equal":
Now, the top branch will have x−1 and the bottom y+1. The numbers should be equal:
x−1=y+1
 
        
             
        
        
        
The formula for slope is
Slope = Rise / Run = Risers / Treads
Slope = 7.75 in /10 in = 0.775
The slope Is 0.775.
The vertical distance is not continuous, thus it is
discrete. A discrete function only allows certain points in the interval. When
you walk up or down the stairs, the vertical distances are not continuous
because of the treads. You cannot stay also mid-air, so it should be discrete.
An example of a continuous function would be when you walk up or down an
inclined plane. 
 
        
             
        
        
        
The answer is not in the choices so ... but the (0,4), (1,1), (2,6) 
Hope This Help.
Xd <3
        
             
        
        
        
Answer:
side of base, a = 10.1 inches, height, h = 40.1 inches
Step-by-step explanation:
Volume of rectangular solid, V = 4096 cubic inches 
Let the side of base is a and the height is h. 

surface area of the solid  

So, h = 40.2 inches