Someone please EXPLAIN how to do this, this is practice for finals and i want to learn how to do it.

In triangles abc and wxy, a=w and b=x which of the following must be true to prove abc=wxy by the aas theorem? a. ab=bc b. bc=xy c. ab=wx d.

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14