If the probability of a train being on time is 0.4 and the probability of it being late is 0.36 what is the probability of it being early?

In the diagram of circle a what is m

What does x = in this equation x+3+2x=x+5

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250