John went to the store and bought a $5.00 magazine and four erasers. If he spent a total of $25.00, how much did each eraser cost?

Each eraser costs $5.00.

Step-by-step explanation:

In the question, it says that John had bought a $5.00 magazine. So, we already know that he used $5.00 for a magazine, and used up exactly $25.00. This must mean that he used $5.00 for each eraser because he used up $20.00 for four erasers. 4x5 = 20.

not solvable

step-by-step explanation:

we need more information, or at least an

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.