Answer:
Correct choice is 
Step-by-step explanation:
1. If
then you can find the inverse 

2. If
then

3. Hence,

Answer:
21120
Step-by-step explanation:Because you take 5280 and multiply it by 4
Answer:
It depends
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
Well, it depends how many lights she needs per arrangement.
Comment below if it is mentioned but you didn't include it.
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