Answer:
-11
Step-by-step explanation:
-3-(-2)+(-10) 
Two - make a pos -3+2+(-10)
-1+(-10)
-11
 
        
                    
             
        
        
        
Answer: 25.     -17, -14, -3, 0, 2, 7 
26.                          -26, -21, -13, -1,  5
27.   -17, -16, -11, -4, 2, 9
28.    -75, -63, -60, -52, 12, 70
Step-by-step explanation:
 
        
                    
             
        
        
        
Step-by-step explanation:
First, the pizza is 18 inches in diameter, so 

and, because the radium is half of the diameter,

<u>Note that the units are inches.</u>
Using the equation 

where a is the area of a circle, we know that the area of the whole pizza is approx.254.5 square inches. Divide by 8 to find the area of 1/8 of a pizza. Each slice will have an area of approx. 32 square inches. For a precise result, the answer is 

where a(s) is the area of a slice of pizza, and s is the total number of slices, given they are equal in size.