Ur answer is 87 bam wham turkey and ham
Answer:
c = 7
Step-by-step explanation:
The sum means to add c and 9, that is
c + 9 = 16 ( subtract 9 from both sides )
c = 16 - 9 = 7
I think it’s the second one because The formula would be
x=
2a
−b±
b
2
−4ac