Please help I don't have much time!! Anything helps!

We assume that the market portfolio has as much probability of increasing by 10% as it is of falling by 5%:

a) What is the beta of a security that rises 25% on average when the market is bearish and falls by 5% on average when the market is bullish?

b) What is the beta of a security that rises 20% on average when the market is bullish and falls by 10% on average when the market is bearish?

c) What is the beta of a stock with 33% expected profitability, regardless of market profitability?