I need help on questions 2,3,4,5 just to make sure pls ASAP

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.

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start

If angle ase measures 168 degrees, find the measure of angle dse. the figure mag not be drawn to scale