Math
posted by Sadie .
I need help with a few problems. Please help.
Perform the indicated operation.
13  (22)
_______________
11  (11)
A)9/22
B) 450
C)13/11
D)Undefined
Multiply (4)(–5)(10).
Find the reciprocal of (1/5) (15)
Find the receiprocal of (1/3)(9/2)(6)
Perform the indicated operation:
1514
____________
(4)(4)16
Please Help.

13(22)= 13+22 = 9
11(11)=0
9/0
Thats undefined. 
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