John earns $7.50 per hour at his job. Becky's earnings are given by the equation P = 8.25x, where P is her total earnings, in dollars, and x is the number of hours worked. If they each work 9 hours, who earns more
and how much more

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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

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll