Final answer:
The fraction of veggie-burgers eaten in a university cafeteria is calculated by dividing 997 by 889,875. The percentage is then found by multiplying the fraction by 100. For the Kelton Research poll, 36% of the adult population of the United States in 2012 is converted to the number of adults believing in alien visits using scientific notation.
Step-by-step explanation:
The student's question about the number of ways to order a Whataburger is not the question to be answered with the information provided. Rather, the response required involves calculating the fraction and percentage of veggie-burgers consumed in a university cafeteria, and determining the number of adults who believe in alien visitors to Earth using scientific notation.
For the veggie-burger question, to find out what fraction and what percent of the burgers were veggie-burgers, we divide the number of veggie-burgers (997) by the total number of burgers (889,875):
Fraction of veggie-burgers = 997 / 889,875
Percent of veggie-burgers = (997 / 889,875) × 100%
For the 2012 Kelton Research poll question, we need to calculate 36% of the total adult population of the United States in 2012 (222,000,000) using scientific notation:
Number of adult believers in alien visits = 0.36 × 2.22 × 108