The answer is A. more than one, because you can create one, but then you can move the angles around. So if the angles in order go 10°, 80°, 90°, you could change the order to 90°, 10°, 80°, or something. I hope this helps!
You would just do 5.7-8.1, which is -3.6 degrees Celcius. Hope I helped!
10 because 7x9 which is the closest you can get to 66 is 7x9 which is 63 and those 3 extra people need a tour too so thats another one
Im not sure but maybe 1 adult and one child but im not sure if this is a trick question
