Hope these help but i wrote all of it out with all its geometrical reasons
 
        
             
        
        
        
Answer:
xx(0.65) + xx(0.08)
Step-by-step explanation:
First step is to find the discounted price. Finding 35% less than the original xx is the same as finding 65% of it, so we multiply by 0.65. Once this is completed we need to find 8% more than that. So we add 8% of xx, which is the same as multiplying by 0.08. Hope this helps :)
 
        
             
        
        
        
<h3>
Answer: 19</h3>
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Explanation:
Draw out a number line. Plot -7 and 12 on the number line. Draw in the tickmarks between them. You should find the distance from -7 to 12 is 19 units since you need to go 19 spaces from either -7 to 12, or vice versa. 
You can use subtraction to get 
-7-12 = -19
or
12-(-7) = 12+7 = 19
The final result is made positive since negative distance does not make sense.
So you'd have |-7-12| = |-19| = 19 or |12-(-7)| = |19| = 19.
All of this only works because the two y coordinates are the same, which makes a horizontal line through the two given points.
 
        
        
        
=-30
-2*-3=6
-1*5=-5
6 x -5=-30
        
             
        
        
        
Hello.
400=(x+20)x is the equation or 400=x^2+20x 
<span>(x+10)=square root of 500 
</span>
<span>so x+10=10 radical 5 
</span>
<span>final answer -10 + or - 10 radical 5=x 
</span>
Have a nice day