Answer:
86.4
Step-by-step explanation:
First adding up all the percentages on the chart you get 360
Then figuring out what 24° of 360 is
You then get 86.4
 
        
             
        
        
        
24x^2 +25x - 47                     53
----------------------- = -8x -3 - ---------------
ax-2                                     ax-2
add 53/ax-2 to each side
24x^2 +25x - 47+53                     
-----------------------         = -8x -3 
ax-2                                     
24x^2 +25x +6                   
-----------------------         = -8x -3 
ax-2       
multiply each side by ax-2
24x^2 +25x +6   = (ax-2) (-8x-3)
multiply out the right hand side
24x^2 +25x +6  = -8ax^2 +16x-3ax +6
24 = -8a      25 = 16 -3a
a = -3          9 = -3a
                    a = -3
Choice B
 
        
             
        
        
        
Answer : 32
( angles of a triangle add up to 180)
        
             
        
        
        
Answer:
$28.05
Step-by-step explanation:
If you want to find how much the photo album is after the markup, you first have to find 10% of the original price. 10% of $25.50 is $2.55, so you add $2.55 and $25.50 to find the price after the markup.
Hope this helps!
 
        
             
        
        
        
Rate of change is the slope.
 The slope is the change in Y over the change in X:
Slope = (5- -3) / (2 - -2)
Slope = 8/4
Slope = 2
Answer: A.2