Total people=180
discount received people=25%+10%=35%
People who did not receive discount=100-35%=65%
65%of 180=65×180/100=117
So 117 people did not receive discount
        
             
        
        
        
Answer:
I can't do the area but area of a triangle is 
A of triangle = h×b over 2 
h = hieght of the triangle
b= base of the triangle
 
        
                    
             
        
        
        
To find the average number of customers for dinner, use the simple ratio of 5 lunch customers for every 8 dinner customers. 
 Because there are 40 lunch customers, this is eight groups of five lunch customers. This means you will need 8 groups of 8 dinner customers to make it equivalent. 
8 x 8 = 64
There is an average of 64 customers for dinner.