:casey has a total of 18 pens. twelve of these pens are blue, and the rest are red. what is the ratio of blue pens to red pens?

2

Step-by-step explanation:

There are a total of 18 pens total. Only 12 of the 18 pens are blue, so we can assume that 6 of the 18 pens are red.

We have all of the information to solve the problem, and the question asks what is the ratio of blue pens to red pens.

We already know that there are 12 blue pens and there are 6 red pens. The ratio asks for blue pens to red pens which means blue over red.

So, 12 blue pens over 6 red pens can be mathematically written as:

12/6 which can be simplified to 2.

So, there are 2 blue pens to every 1 red pen.

Hope this helps!

Honestly have no idea