Fill in the blank: Since none of the UF retired professors v…

Fill in the blank: Since none of the UF retired professors visited the travel nurse before they left for Mexico, none of the retirees received their Hepatitis A vaccines. If they had received the vaccine or had the disease prior to traveling, their immune system would have produced its own antibodies providing _____________ immunity against the disease. Unfortunately, on their trip, they were exposed to Hepatitis A. To prevent them from becoming ill they had to receive Hep A immunoglobulin from the Health Department thus providing them with _________________ immunity.

To determine what type of DVDs to purchase, the local librar…

To determine what type of DVDs to purchase, the local library did a survey of favorite movie genres.  The results are shown in the circle graph below.  If 450 people participated in the survey, how many of those surveyed chose comedy as their favorite movie genre?  Answers are rounded to nearest whole number.