It would still be 17.8, unless there are more numbers after the 8.
        
             
        
        
        
The correct graph is the last one
x -3<-12
x<-12+3
x<-9
        
             
        
        
        
It's a simple linear equation in 'y'.  There is only one number that 'y' can be 
that will make the equation a true statement.  That number is called the 
'solution' to the equation.   Here's one way to find it:
You said that                         <u> 2  =  y/5 - 8</u>
Add  8  to each side:          10  =  y/5
Multiply each side by  5:  <em>  50  =  y</em>
        
                    
             
        
        
        
5(x^2 - 14x + 258/5)
= 5((x-7)^2 -49+258/5)
= 5((x-7)^2 + 13/5)
= 5(x-7)^2 + 13
I belive this is how it should be done
        
             
        
        
        
Answer:
84 ounces of pure gold
Step-by-step explanation:
Jess has 60 ounces of an alloy that is 40% gold. How many ounces of pure gold must be added to this alloy to create a new alloy that is 75% gold?
Pure gold = 100% gold
Let the number of ounces of pure gold = x
Hence, we have the equation
40% × 60 ounces + 100%× x ounces = 75%(60 + x)ounces
= 0.4 × 60 + 1x = 0.75(60 + x)
= 24 + x = 45 + 0.75x
Collect like terms
x - 0.75x = 45 - 24
0.25x = 21
x = 21/0.25
x = 84 ounces
Therefore, we need 84 ounces of pure gold