Answer:
It is -7
Step-by-step explanation:
Break the parentheses and it will become 5.1 + -12.1 which will equal -7.
Answer:
9(y+3)
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
The formula for distance between points is 
So when you inserts the coordinates in this formula, it would be 



=12.08305
Usually, distance is round to whole number. So, it would be 12
Answer:
a,c
Step-by-step explanation: