64 dollars is the tax, the total cost would be $864.
Use this for percentages.
https://percentagecalculator.net/
        
             
        
        
        
Answer:
2x + 5y + 28 = 0
Step-by-step explanation:
since they are perpendicular, 
m1 ×m2 = -1
5/2 × m2 = -1
m2 = -2/5
now,
y -y1 = M (x-x1)
y - (-4) = -2/5 ( x - (-4) )
y +4 = -2/5 ( x + 4 )
5 ( y +4 ) = -2 ( x+4)
5y +20 = -2x - 8
2x + 5y +20 + 8 =0
2x + 5y + 28 = 0 
 
        
             
        
        
        
Answer:
-36x+114
Step-by-step explanation:
 
        
             
        
        
        
Answer:
y=-1/2x+3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
-9
Step-by-step explanation: