Answer:
11. 
12. 
13. 
14. 
15. 
16. 
17. 
18. 
Step-by-step explanation:
In all of them you just subtract the bottom exponent from the top exponent.
(5,0) if there is no y then it is a 0
Correct, because the area of a square = side x side = side^2
Answer:
1/18
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
Well, 4/4=1 and 72/4=18.
Hence, 4/72=1/18
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