Find the indicated probability. If​ P(A or ​B)equals=0.6​, ​P(A)equals=0.3​, and​ P(A and ​B)equals=0.15​, find​ P(B). Question content area bottom Part 1 ​P(B)equals=enter your response here ​(Simplify your answer. Type an integer or a​ decimal.)