Answer:
Step-by-step explanation:
The last one
Answer:
The number is 12
Step-by-step explanation:
If 15 is three more than the number is three less so you do, 15 - 3 which is 12.
I hope this helps
Answer:

Step-by-step explanation:
Distance Formula: 
Simply plug in the 2 coordinates into the distance formula to find distance <em>d</em>:







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