Angle bca is congruent to angle dac, and angle bac is congruent to angle dca by:

the vertical angle theorem.
the alternate interior angles theorem.
the reflexive property.
none of the choices are correct.

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11