Anyone ??? I need help

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Find the values of y: 3y^3(y^2+ 2/3y)=0