Help will give points 15

The triangles are congruent

Step-by-step explanation:

This is clear because the entire shape is a square; meaning all of it´s sides are equal. For instance if you cut the square in half you would get congruent rectangles meaning they are the same size. The same would happen is you cut the square diagonally, which is what happened. That is why the triangles are congruent. (Hope this helps :3)

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt

step-by-step :