The sum of 7 and the cube of a number.

Taking algebra two apex courses and need with these questions

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

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)