2(2)-3=5-2(2)
4-3=5-4 
1=1 
The correct answer is A
        
                    
             
        
        
        
Answer:
maybe
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
- North Middle School = 10 students 
- Central Middle School = 6 students 
- South Middle School = 4 students
Step-by-step explanation:
First calculate the total number of students in all the schools:
= 618 + 378 + 204  
= 1,200 students
Use this number to calculate the proportion of the total population that a school so that this can then be used to determine the proportion of the 20 delegates they should sent. 
North Middle school:  
= 618/1,200 * 20  
= 10 students
  
Central Middle School:  
= 378 / 1,200 * 20  
= 6 students
  
South Middle School:  
= 204/1,200 * 20  
= 4 students  
 
        
             
        
        
        
Answer: The secretary's salary prior to the reduction was $42,000.
Step-by-step explanation:
Hi, to answer this question we have to write an equation:
The original secretary's salary (x) multiplied by the percentage reduction in decimal form (4.5/100) must be equal to the amount of the reduction (1890)
Mathematically speaking:
x (4.5/100)= 1890
Solving for x:
x (0.045)= 1890
x = 1890/ 0.045
x = 42,000
The secretary's salary prior to the reduction was $42,000.
 
        
             
        
        
        
Assuming this is a rectangular prism, here are the formulas for the volume and surface area. 
V=l×w×h
SA=lw+lw+lh+lh+wh+wh
I didn't want to give the answer away, but I wanted to head you in the right direction. Hope this helped!