Ez but just wanna make sure extra points

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)

Which math sentence can be used to determine if the triangle is a right triangle?

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?