Step-by-step explanation:
The system of equations for eq 1 which is 3x + y = 118 represents the Green High School which filled three buses(with a specific number of students identified as x) and a van(with a specific number of students identified as y) with a total of 118 students.
for eq 2; 4x + 2y = 164; represents Belle High School which filled four buses(with a specific number of students identified as x) and two vans(with a specific number of students identified as y) with a total of 164 students.
The solution represents the specific number of students in the buses and vans in eq1 and eq 2 with x being 36 students and y being 10 students. 
substituting 36 for x and 10 for y in eq 1;
3(36) + 10 = 108 + 10 = 118 total students for Green High School 
substituting 36 for x and 10 for y in eq2;
4(36) + 2(10) = 144 + 20 = 164 total students for Belle High school 
 
        
             
        
        
        
Divide 18 to both sides and you get -12
 
        
             
        
        
        
Use photo math it’s a great tool
        
             
        
        
        
It’s A because I did the test lmafo
        
             
        
        
        
Answer:
33
Step-by-step explanation:
let's call the number 2x
then half of it will be x
if x > 16
smallest this number can be is 33