Which of the following sets of ordered pairs is a function? {{-5,-4),(-5,-2),(-5,0)}
{(0,3),(0,2),(0,3)}
{(1,0),(2,0),(3,0)}
{(-3,1),(-2,0),(-3,-2)

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