Fist u have to calculate how much it takes to reach the certain number for instance it takes 30 per gallon because 30 times 1 is 30. 30 times 2 is 60 and so on
Using basic math we will eventually come with an answer of 9.
Well...The sum of those radicals is 7 root 2 and that is a imperfect square root so this is irrational