The answer is a because if the title is in the middle you always have to put quotation marks
The best synonym for this word would be B, surrender.
D because it’s spelled convincing.
Formula of circle:
C= 2πr
The radius is half of the diameter, so divide 9 by 2
18/2=9
Then plug in 9 as the radius in the formula.
C= 2π(9)
Using you calculator multiply 2 by the symbol "π" and 9
Exact Form is 18π
Decimal Form is 56.54866776...