Dean and Nina, both teachers, are adding books to their class libraries. Dean's classroom started out with a collection of only 18 books, but he plans to purchase an additional 3 booksper week. Nina's library started out with 36 books, and she has enough money in her budget
to purchase another 1 book per week. At some point, the two teachers' libraries will contain
the same number of books. How many books will each class have? How many weeks will that
take?

Which of the following statement about pascal's triangle are true?

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126 a. the attendance was never the same at both plays. b. the attendance was the same on day 5. the attendance was 231 at both plays on that day. c. the attendance was the same on day 13. the attendance was 295 at both plays on that day. d. the attendance was the same on days 5 and 13. the attendance at both plays on those days was 231 and 295 respectively.

Extra points! find the missing dimension! need asap