I have to simplify but I’m doing something wrong and when I looked it up it said used AC method which is a term I never heard in my class. Please help

Each morning papa notes the birds feeding on his bird feeder. so far this month he has see. 59 blue jays, 68 black crows, 12 red robin's and 1 cardinal. what is the probability of a blue jay being the next bird papa sees

Ineed to know the answer right now! !

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.