Jake has decided to invest in three business ventures. the total cost of investing in all three ventures is $15,000. the combined investment in the first and third ventures is $7,000 more than the investment in the second venture. according to jake's research, his investment in the first venture will triple after three years, and the investments in the other two ventures will double in the same period, making the total value of his investment $39,000. jake's investment in the first venture is $, his investment in the second venture is $, and his investment in the third venture is $. nextreset

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Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.