Answer:
Match it with x and y method
Step-by-step explanation:
 
        
                    
             
        
        
        
There are two ways to do this but the way I prefer is to make one of the equations in terms of one variable and then 'plug this in' to the second equation. I will demonstrate
Look at equation 1, 

 this can quite easily be manipulated to show 

.
Then because there is a y in the second equation (and both equations are simultaneous) we can 'plug in' our new equation where y is in the second one 

 which can then be solved for x since there is only one variable 

 and then with our x solution we can work out our y solution by using the equation we manipulated 

.
So the solution to these equations is x=-2 when y=6
 
        
        
        
Answer:
if n is an exponent, then n=2
Step-by-step explanation:
10 squared is 100
10*10=100
 
        
             
        
        
        
Answer:
x = -4
Step-by-step explanation:
3x + 3 +9 = box
3x = -12
3x/3 = -12/3
x = -4 
 
        
                    
             
        
        
        
<span>1) If you invest $2,000.00 at a rate of 4% APR for 3 months and the interest is compounded monthly then in 3 months.It will be worth $2,020.07.
So subtracting $2,000 from $ 2,020.07
we get.
<span>$20.07
2) </span></span><span>I = Prt </span>
<span>I = 4,000 * 0.05 </span>
<span>I = $200 
</span><span>200 / 10 = 20 hours of work</span>