Find the next term of the given sequence.

1.31, 2.54, 3.77,

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect

How do i simply this radical expression?