(please help!) The center of a circle is at the origin on a coordinate grid. The vertex of a parabola that opens upward is at (0, 9). If th circle intersects the parabola at the parabola's vertex, which statement must be true?

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq less than 132. the probability that a randomly selected adult has an iq less than 132 is?