A=10*8+((8-6)(15-10))/2
A=10*8+(2*5)/2
A=10*8+10/2
A=10*8+5
A=80+5
A=85 feet 
Therefore the answer is D
Hope this helps :)
        
             
        
        
        
Answer:
The answer is -2.
Step-by-step explanation:
7w + 18 = 10w + 24
7w = 10w + 6
-3w = 6
w = -2
 
        
                    
             
        
        
        
Answer:
addition
Step-by-step explanation:
18 (<u> d </u> - 9 ) = 198
      3
divide both side by 18
<u> d </u> - 9 = <u> 198 </u>  
 3             18
<u> d </u> - 9 = 11 
 3 
multiply both sides by 3
d - 27 = 33
add 27 to both sides
d = 33 + 27
lastly, add them together
d = 60
therefore, the last step is addition
 
        
             
        
        
        
Answer:
B, y = 4x + 1
Step-by-step explanation:
to get it into y- intercept form we need to write it in the form y = mx + b
-8x = 2 - 2y, move 2y to the other side and -8x to the other side they both become positive.
2y = 8x + 2, dividing each by 2 
yields y = 4x + 1
Hope this helps
 
        
             
        
        
        
514 divided by 28 equals 18.3571429