Melina's bus runs every 20 minutes if she arrives at her bus stop at a random time what is the probability that she will have to wait at least five minutes for the bus if it is running on schedule

Iam so stuck. what is the worked out answer for this question?

(6.03) what is the constant term in the expression 6x3y + 7x2 + 5x + 4? (input a numeric value only.) numerical answers expected! me pls! fast pls

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.