I need help

The prior probabiities for events A1 and A2 are P(A1)=.40 and P(A2)=.60. It is aiso known that P(A1A2)=0. suppose P(BA3)=.10 and P(BA2)=20. a. Are events A1 and A2 mutually exclusive? b. Compute P(A1B) (to 4 decimais), compute P(A2B) (to 4 decimats). c. Compute P(B) (to 4 dedmals). d. Apply Bayes' theorem to compute P(A1B) (to 4 decimals). Aso apply Bayes' theorem to compute P(A2B) (to 4 decimab)