20x4=−15y7z⇔4x4=−3y7z i have to decided if this is a multiplicative cancellation property, additive cancellation property, zero factor property or a false statement and then identify the quantity that is added or multiplied by both sides but I keep getting the answer wrong.

Polygons efgh and e′f′g′h′ are shown on the coordinate grid: what set of transformations is performed on efgh to form e′f′g′h′? a. a translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin b. a translation 1 unit to the right followed by a 90-degree counterclockwise rotation about the origin c. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the right d. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the left

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Select the lengths in centimeters that would form a right triangle