Answer:
28+28=56 so 28 and 28 and the bottom will be 56
 
        
             
        
        
        
Answer:
The data can be modeled using linear equatins, because there's the same amount of population for fish A (+20 per year) and fish B (+30 per year) every year. 
 
        
             
        
        
        
Answer:
5y + 7
Step-by-step explanation:
Given:
Seeds planted in one garden = y vegetable seeds
Seeds planted in another garden =  4y + 7 vegetable seeds
To Find:
The number of seeds Val is going to plant = ?
Solution:
Let the total number of seeds that Val is going to plant be x.
Then
x =  number of seeds planted in garden one +  number of seeds planted in the other garden
Now substitute the values, we get
x = y + (4y+7)
x = 5y + 7
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
This is because they are both mulitplied by two so they are still equivalent
 
        
             
        
        
        
Answer:
  (a) isosceles
  (b), (c) scalene
Step-by-step explanation:
The lengths of the sides can be found from the distance formula:
  d = √((x2 -x1)^2 +(y2 -y1)^2)
Here, there are 9 lengths to be computed, so it is useful to let a spreadsheet or graphing calculator do it.
We find triangle (a) has two sides the same length, so it is isosceles.
The other two triangles have three different side lengths, so they are scalene.
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<em>Additional comment</em>
It is impossible to specify an equilateral triangle using rational coordinates.