The answer is 
A. 3x - y= -7
        
             
        
        
        
Answer:
You divide 37 and 4 then the answer is 8 remainder 5
Step-by-step explanation:
 
        
             
        
        
        
<span>Are the lines in the diagram perpendicular, parallel, skew, or none of these?
l and m: neither
l and m intersect, but are not perpendicular. 
l and n: skew
l and n are not parallel, but they do not intersect because they are not on the same plane. 
m and n: perpendicular. 
m and n intersect at a right angle</span>
        
                    
             
        
        
        
Answer:
Commutative property w.r.t '+'
Step-by-step explanation:
3+2 =3+2
As both side contain two variable and both are adding and their answer is also same.
5=5
so this is commutative property with respect to addition.
 
        
             
        
        
        
Let
x-----------> the number of kids
y----------> the number of adults
we know that
2.5x+6y=$7150---------> equation 1
x=2y-------------> equation 2
substitute 2 in 1
2.5*[2y]+6y=7150-----> 5y+6y=7150----> 11y=7150-----> y=650
x=2y----> x=2*650----> 1300
the answer is
the number of kids is 1300