Stan's bank account balance is less than -$20.00 but greater than -$21.00. what could stan's account balance be?

Josephine has a great garden with and area of 2x2 + x - 6 square feet

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

The figure below shows rectangle abcd and the triangle eca on a coordinate plane. which of the following expressions represents the perimeter of triangle of triangle eca in units