50 points. Please complete it, and I'll give you brainiest There are 60 members in a music club. 25% of them like jazz, 15% of them like pop music, 20% of them like rock music and 50% of the rest like classical music. How many members enjoyed classical music?

A total of 48 students sat for a mathematics examination. Only 75% of them passed. How many students passed the examination?

During an election, Albert received 60% of the 30 votes cast. Anthony received the remaining votes. How many more votes did Albert receive?

Six people can pack 1500 boxes in 4 days. At the same rate, how many boxes can eight people pack in 6 days?

If 5 workers complete one task in 7 days, then how many days will 7 workers take to complete the same task?

Could somebody me with this radical simplification?

Which part of a 2-column proof is the hypothesis of the conjecture? a) given b) reasons c) prove d) statements ! i think it's b but i'm not quite

Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.