Simplify fifteen a minus nine minus nine a plus eleven plus three b.

Tanyss's house has 25 windows. her brother has washed 22 of the windows. what percent of the windows has her brother washed?

Which shows one way to determine the facts of x3+4x2+5x+20 by grouping

The result of which expression will best estimate the actual product of (-4/5) x (3/5) x (-6/7) x (5/6) (i need an expression not an answer)