Why do our eyes hurt when we open our eyes for a long time

Astudy shows that an influenza vaccine is 71.4% effective in preventing a particular type of influenza. if 15,422 people receive the vaccine, how many would not be protected and would be likely to get infulenza?

Select the correct answer mike tells his teacher that he fears wetting his bed and feels that he should run away from home. what could be the probable cause of mike's fears? a mike could be throwing a tantrum. b. mike could be facing abuse from his parents. c. mike could be disobedient. d. mike could be neglected by his parents

If an online school program (i.e k12, ecot) assigns me a computer, would it be ok to use social media on it? would i get in trouble? i am not really sure from reading their terms and such.