When should people recieved pneumococcal vaccine

Around the third week of a college class, a professor decides she’s had enough, is tired of dealing with bureaucracies, and wants out. so one day, instead of coming to class, she flies to tahiti and sells souvenirs on the beach. if this happened, the college would simply assign a substitute to finish the course. what does this tell you about the nature of the authority wielded by a professor?

What are policymakers trying to do by using the media to deliver specific messages to citizens?

Why was new orleans destined to be the center of slave trade in the southern united states