Can someone help me plz!!

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Can someone me with these two circle theorem questions asap?