Answer:
System of linear equations is solved below and explained in detail.
Explanation:
Part a: 
M = [1  3  5  2; 2  -4  7  -3; 0  -4  -7  3; 5  -3  2  1];
c =  [7;  -3;  -1;  0];
Part b:
The statement used for the solution of system of linear equation will be:
X = linsolve(M,c)
where X will give the values of x1, x2, x3, x4 respectively.
Part c:
The system is solved in matlab using above equation and the results are attached in a file.
The values for X are:
x1 = -2/7
x2 = 3/7
x3 = 4/7
x4 = 11/7
 
        
             
        
        
        
Answer:
i think it should slow down
Explanation:
i think this because people are always on social media so they should put down their devices and interact with others and sometimes they are violent on their devices so it would be better if people did stay off their devices for a little bit.
 
        
             
        
        
        
It is Nevaeh backwards hope that helps! :3 and feel free to pm me if you have anymore questions! :3
        
                    
             
        
        
        
Answer:
A
Explanation:
thethe more you have attached the more people are going to know your product so that it's going to be a long process which people can introduce to their friends