Avideo game has 3 villains who pop up at different times one villain comes up every 5 seconds a second villain comes up every 10 seconds a third villain appears every 16 seconds find the lcd (least common denominator) of 5, 10 and 15 to determine how much time will pass before 3 villains appear at the same time answer soon this counts for 60% of my grade

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.