Which equation represents the graphed function

Let w=23 . what is the value of w + 45 ?

What is the area of triangle abc if a = 8, b = 11, and c = 15?

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