Is this a trick question or something couse I think it is bit here is my amswer
Nick finishes his homework in 55 minutes
I dont know but this was just a guess, so correct me if I'm wrong.
Hope this Helps! :)
I think it is 3.571 but I'm not sure
Answer:
12 cm (I don't understand bro):(
U-value is generally used to rate door or window units. The lower the U-Value, the more energy efficient the system in question will be. A U-value is typically a low number because it is a rating of how much heat energy is lost or gained. If we look at the two values mathematically, U-value is the reciprocal of R-value; that is, U = 1/R and R = 1/U.