given three segments of lengths of 6, 7 and 8 explain of the 3 segments can create a triangle and what type of triangle (right, acute, obtuse) would be created?​

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)