Suppose 90% of kids who visit a doctor have a fever, and 45% of kids with a fever have sore throats. What's the probability that a kid who

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.