What is the value of x? ​

Use the diagonals to determine whether a parallelogram with vertices u(2,−2), v(9,−2), w(9,−6), and x(2,−6) is a rectangle, rhombus, or square. give all the names that apply.

Which best explains why this triangle is or is not a right triangle?

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?