Khadija purchased a prepaid phone card for $20. Long distance calls cost 11 cents a minute using this card. Khadija used her card only once to make a long distance call. If the remaining credit on her card is $16.92 , how many minutes did her call last

An oil exploration company currently has two active projects, one in asia and the other in europe. let a be the event that the asian project is successful and b be the event that the european project is successful. suppose that a and b are independent events with p(a) = 0.2 and p(b) = 0.8. (a) if the asian project is not successful, what is the probability that the european project is also not successful? (b) what is the probability that at least one of the two projects will be successful? (c) given that at least one of the two projects is successful, what is the probability that only the asian project is successful? (round your answer to three decimal places.)