V = x/t = 4.5 mil / 3 h = 1.5 mph
Since, v = 1.5 mph (or we can say that v is constant), distance and time vary directly and the constant of variation is 1.5 mph.
        
             
        
        
        
B=-2 or b=0 is the awnser
        
                    
             
        
        
        
A = b * h
b = 8 2/3
h = 5 3/4
A = 8 2/3 * 5 3/4.....turn to improper fractions
A = 26/3 * 23/4
A = 598/12
A = 49 5/6 ft^2 <====
        
             
        
        
        
Answer:
hi
Step-by-step explanation:
for example

in the second one you should multiple 5 and 1 then add 4 
 
        
             
        
        
        
Given Equations 
- 5x+3y=8--(1)
- 4x+7y=34--(2)
Let it has solution (x,y)
Add both


It will also have same solution (x,y)