15. x ≤ -24
     x + 19 ≤ -5
     x ≤ -24
16. z > -12
     3z > -36
     z > -12
17. 185 + c > 410; c > 225
18.   C.
     x - 6 ≥ 1
     x ≥ 7
 
        
             
        
        
        
Answer:  5, 8
<u>Step-by-step explanation:</u>
The difference between 3 times a number and -8 is BETWEEN 23 and 32
Note: "difference" means subtraction --> 3x - (-8)  --> 3x + 8
                23 < 3x + 8 < 32
                15 < 3x        < 24          <em> subtracted 8 from all 3 sides</em>
-->             5 <   x        <   8           <em>divided 3 from all 3 sides</em>
  
 
        
             
        
        
        
A. 199
b. -71
c. -2.25
d. 30
e. -18
f. -4 
g. 4
h. 7
i. 0
        
             
        
        
        
Answer:
w=15
Step-by-step explanation:
w/5=3
multiply by 5 on both sides
w=3*5
∴ w=15
 
        
                    
             
        
        
        
<span>Income earned over one year is principal * int rate so we have
0.12*A + 0.13*B +0.14*C = 400
and A + B + C = 3000
and A+B = C</span>