Which technology means to travel from one place to another pottery
hunt and gather
simple tools
migration

I think its hunt and gather

Step-by-step explanation:

The methods Paleolithic people used to hunt and gather their food were part of their culture, as were the tools they used.

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