480 bottles because 300 divided by 5 is 60 so then you multiply 60 by 8 and you get 480!
        
                    
             
        
        
        

Explanation:
Since we have given that
Speed at which Eugene walked all the way to school = 3 mph
After realizing that she forgot her math book, she ran back
Speed at which Eugene walked back to her house = 7 mph
Let the distance between her house and her school be x
According to question,

Hence, 

 
        
             
        
        
        
Answer:
4 x minus 5 y = negative 5 and 3 x + 10 y = negative 20
Step-by-step explanation:
The equations
4 x - 5 y = 5 (red)
3 x + 10 y = 20 (blue)
4 x - 5 y = -5 (green)
3 x + 10 y = -20 (purple)
are shown in the picture attached. As we can see there, the point (–2.7, –1.2) is on the intersection of the purple and green lines. Therefore is the solution of the system:
4 x - 5 y = -5 
3 x + 10 y = -20 
 
        
                    
             
        
        
        
Answer:
a).  m
 m
b).  m³
 m³
c).  N²
 N² 
Step-by-step explanation:
In this question we have to convert each option into SI units.
a).  mm
 mm
=  m
 m
=  m
 m
b). (348 mm)³
=  m³
 m³
=  m³
 m³
=  m³
 m³
c).  N²
 N²
=  N²
 N²
= 
=  N²
 N²