Answer:
D. 50
Step-by-step explanation:
50/1 (60/100) =
3000/100 =
30/1 =
30
Answer:
84/105= 8/10=4/5
Step-by-step explanation:
Answer:
Step-by-step explanation:
Key to this method is remembering that

So, if you divide the coefficient of x by 2 and square it, that will complete the square. With that in mind, things are easy.
6/2 = 3, so add 

So, c=9
Similarly, for the other two,

You don't really have to worry about the sign, since squaring will always make it positive

Answer:
it could be C or a
Step-by-step explanation:
more likey c be sorry if it's wrong