Julian places 8 books on each shelf of a bookcase. if he shelves 32 books, how many shelves are needed?

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?