Arecipe that serves 6 uses 1 and 1/4 cups of flower. how many cups are needed to serve 8?

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

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How do i put 3(x+7) in distributive property