15. Asriel thinks he has room for a 50 inch TV in his living room. It turns out he only has room for a 40 inch TV. What is his percent error? *

10%
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30%

Statement: if two distinct planes intersect, then their intersection is a line. which geometry term does the statement represent? defined term postulate theorem undefined term

With this one. will mark brainliest

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?