Suppose we want to choose five objects without replacement from 14 distinct objects if the order of the choices is taken into consideration how many ways can this be done

Which of the following statement about pascal's triangle are true?

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.

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document