If x varies inversely as the square of y and if x=3 when y=-1, what is the value of x when y =3

would be when .

Step-by-step explanation:

The question states that varies "inversely" as . In other words, there is a non-zero number (a constant) such that:

.

The challenging part is to find the value of in this equation.

Given that when , replace the in this equation with and with . This equation should still be valid:

.

Solve for :

.

Hence, the relation between and becomes:

.

Find the value of when by replacing the in this equation with .

.

In other words, the value of would be when .

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

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.