Given that XY = MN and XY + YZ = XZ, we can state that MN +
YZ = XZ.
what property is it?

Transitive property of congruence

Step-by-step explanation:

It tells us that if A=B and B=C, then A=C.

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