Answer:
3/5
Step-by-step explanation:
7/15 + 2/15 = 9/15
both 9 nad 15 are divisible by 3 
9/15 = 3/5
 
        
                    
             
        
        
        
Answer:
Yes
Step-by-step explanation:
If you multiple 1/3 by 3/3 you would get 3/18
 
        
             
        
        
        
Answer:
C
Step-by-step explanation:
10×-28=-280
35-8=27
35×(-8)=-280
10x²+27x-28
=10x²+(35-8) x-28
=10x²+35x-8x-28
=5x(2x+7)-4(2x+7)
=(2x+7)(5x-4)
 
        
                    
             
        
        
        
Each student will get 3/32 of the cake :)