Somebody pls help with the second one, and also can u tell me if the first one is correct??

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

How many solutions does the nonlinear system of equations graphed bellow have?

9/10 divide by -3/15 as a mixed number