Solve the Problem $$\text { Given that } P ( A ) = 0.15 , P ( B ) = 0.42 \text {, and } P ( A \cap B ) = 0.10 \text {, find } P ( A \cup B ) \text {. }$$

Solve the problem.
- $$\text { Given that } P ( A ) = 0.15 , P ( B ) = 0.42 \text {, and } P ( A \cap B ) = 0.10 \text {, find } P ( A \cup B ) \text {. }$$

A) 0.47
B) 0.67
C) 0.37
D) 0.57