26 divided by a number r

26/r

Step-by-step explanation:

So when they say a number they are meaning r.

Now lets break this into two simpler pieces.

When they say dividing by r they mean over r, or:

They say 26 is what is being divided by, which means 26 over, or:

Now we just need to combine these two pieces together:

So this is your answer!

Hope this helps!

were is the equation