Which of the following expressions is correct? ) = 21 -(21) = 21 ) = -21 (-21) = 21

Will possibly give brainliest and a high rating. choose the linear inequality that describes the graph. the gray area represents the shaded region. 4x + y > 4 4x – y ≥ 4 4x + y < 4 4x + y ≥ 4

Y+ 2/y is it a polynomial in one variable or not? and if so, why?

How is this equation completed? i cannot find any examples in the book.