Worth 50 points!I need help plz! Will mark brainliest to whoever does all the work.

A basket contains:
4 red Santa hats
6 green Elf hats
5 red jackets
7 green jackets.

Determine the probability of randomly selecting a green piece of clothing or a jacket.

(A)Use the addition rule to calculate this probability and explain your answer.

Do this equation P(AorB)=P(A)+P(B)-P(A and B)
(Write your answer as a percent.)

(B) are a green piece of clothing and a jacket mutually exclusive events?