We have to add the amounts:
4(2x+3y) + 3(5x+4)
First, though, we have to distribute:
4*2x + 4*3y + 3*5x + 3*4
8x + 12y + 15x + 12
Now we just need to simplify:
23x + 12y + 12
The  students planted 23x + 12y + 12 trees total.
        
             
        
        
        
(10n-5)/(5)= 2n-1
just divide
10/5 = 2 and -5/5 =-1
and you get the answer
2n-1= 2n-1
        
             
        
        
        
Answer:
 The percent of change is an increase.
Step-by-step explanation:
624 has been changed to 702.
Percent change = [(Value after - Value before ) / Value before]*100
                           =
                           =
So we can clearly see that percentage change is a positive change. This means that the Value after change is higher than value before the change. So the percent of change is an increase.
 
        
             
        
        
        
The line which rises to the left has slope of -1/3 and y intercept  of 2 so we have
y = -1/3x + 2
3y = -x + 6
x + 3y = 6
Shading is below and the line is  solid so the inequality  is
x + 3y  ≤ 6
The other line has equation
y = 3x - 1
and inequality is
y ≥ 3x - 1
The answer is B