Which are the possible side lengths of a triangle?
3 cm, 5 cm, 9 cm
4 cm, 8 cm, 10 cm
6 cm, 9 cm, 17 cm
8 cm, 10 cm, 18 cm

The answer would be B: 4 cm, 8 cm, and 10 cm. The first two lengths, when added together, should equal MORE than the last length. If they do not equal more, the lengths will not make a correct triangle.

Hope this helps

i can't read the graph

step-by-step explanation:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.