first of ALL obviously the sizes are different but the question is how they are similar to each other so by using ratios to explain you can come come out with an answer that will always be the same only difference would be size equation is : Source: Trust me bro
As Louis is only leaving a 20% tip on the pretax bill, this means he's leaving 20% of $27.62 The best thing to do is to find 10% and double it. 27.62/10= 2.76 (as it rounds down) 2.76*2= 5.52 Therefore, you've got to add $5.52 to $27.62 $5.52+$27.62= $33.14 Hope this helps :)
