Does anybody know how to do this? i need help / If P = {−1, 1, 3} and Q = {−5, −3, 0, 6, 9}, find P ∩ Q.

{−5, −3, −1, 0, 1, 3, 6, 9}
{}
{0}
{−3, −1, 1, 3}

A3cm×3cm\greend{3\,\text{cm} \times 3\,\text{cm}} 3cm×3cm start color greend, 3, space, c, m, times, 3, space, c, m, end color greend rectangle sits inside a circle with radius of 4cm\blued{4\,\text{cm}} 4cm start color blued, 4, space, c, m, end color blued . what is the area of the shaded region? round your final answer to the nearest hundredth.