Pls help me really fast and thx! When solving the literal equation rx = sx + t for x, are there any restrictions on r, s, or t?

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

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Factor the expression using the gcf. the expression 21m−49n factored using the gcf