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Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41