What is the answer and how is it the answer

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

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

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300