Answer:
yo i only got number 4 for you but here it goes.......: 0.70x+18y-5
Step-by-step explanation:
 (0.75x  -  12y) + (-5  +  6y  -  0.5x)
regroup to the variables : (0.70x-0.5x) + (12y+ 6y-5)
put it together: (0.70x)+(18y-5)
you cant add unlike terms so you remove the parenthesies and your done.
 
        
             
        
        
        
X/8=32-6
x/8=26 Do cross product
x=8*26
x=208
        
             
        
        
        
That as a decimal is
19/25=0/76
It can't be simplified but could be made larger
38/50
        
                    
             
        
        
        
Set to zero
0=4x^2+24x+11
factor
use ac method
muliplty 4 and 11
44
what 2 numbers multily to get 44 and ad to get 24?
2 and 22
0=4x^2+2x+22x+11
0=(4x^2+2x)+(22x+11)
0=2x(2x+1)+11(2x+1)
0=(2x+11)(2x+1)
set to zero
2x+11=0
2x=-11
x=-11/2
2x+1=0
2x=-1
x=-1/2
x=-11/2 and -1/2
        
                    
             
        
        
        
How to find can u send the pic of this question