Answer:
Option D
Step-by-step explanation:
Collect all like terms and Calculate
-10x-7x= -17x
20-54= -34
Divide
-17x < -34
x>2 
 
        
                    
             
        
        
        
Answer:
There is no common difference
Step-by-step explanation:
      4      9      13      18
diff     5      4       5
Because the difference between 9 and 13 is 4 
and the difference in the other terms is 5 
there is no common differeence
 
        
             
        
        
        
Answer:
x = -14
Step-by-step explanation:
The expression to write in this problem is:
"the sum of x and 12 equals the sum of half of x and 5"
We have:
- The sum of x and 12 is: 
- The sum of half of x and 5 is: 
So, the equation to write in this problem is

We solve it as follows:
1) First, we subtract  from both sides, and we get
 from both sides, and we get

2) Then, we subtract 12 from both sides:

3) Now we multiply both sides by 2:

So, this is the solution.
 
        
             
        
        
        
First let's find the slope
Slope formula: 

Given the two coordinates: 
(-4,-7) (3,2) 
 x1,y1  x2,y2
Plug these numbers into the formula

In this case the mistake that was made was that the student wrote the slope negative instead of positive
Final answer: 
<span>y-2=9/7(x-3)</span>