Answer:
D)24 people
Step-by-step explanation:
Total number of people, x=300
Number of people donated blood with type A, y 

Number of people donated blood with type B, z 

⇒Number of people with Type A blood donated more than those with Type B blood= y-z=84-60= 24
 
        
                    
             
        
        
        
Answer:
40cm
Step-by-step explanation:
if the area is 100 then you have to do the square root of 100 which is 10.
each side is 10. 
10 x 4 because 4 equal sides
40
 
        
             
        
        
        
Answer:
76
Step-by-step explanation:
Hope this helps