If you know that 4 of an item costs a certain amount, and you want to find out how much one costs, which operation will you use?
a) addition
b) division
eliminate
c) matriculation
d) multiplication

We will use division operation

Step-by-step explanation:

Let x be the cost of 4 items

So, cost of 1 item =

So, we have used division operation

So, to find out how much one costs, we will use division operation

So, Option B is true

Hence we will use division operation

b or 2, just plug these equations into your graphing calculator then check the graph to see the image. if it matches up then that's your answer!