Equivalent expressions II

This task is about what happens to indices when simplifying algebraic expressions.
Circle the letter next to the expression that is equal to the one that is given.
 
a)		  
w5 × w3 is equal to
   
(A)   2w8     (B)   2w15     (C)   w8     (D)   w15
 
b)		  
y12 ÷ y3 is equal to
   
(A)   y4     (B)   y9     (C)   y15     (D)   y36
 
c)		  
5m4 × 4m5 is equal to
   
(A)   9m20     (B)   20m20     (C)   9m9     (D)   20m9
 
d)		  
24p8 ÷ 8p2 is equal to
   
(A)   3p6     (B)   16p6     (C)   3p4     (D)   16p4
 
e)		  
(2s3)4 is equal to
   
(A)   8s7     (B)   16s7     (C)   8s12     (D)   16s12
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