The late fee for library books is $2.00 plus 15 cents each day for a book that is late. How much will you owe if the book is 30 days late?

Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining bismuth-210 transforms into another atom (polonium-210 in this case) each day. if you begin with 233 mg of bismuth-210, how much remains after 8 days?

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.