The questions and chocies are in the picture

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)

Me. i can't figure out this question. give an explanation too. .

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)