trisha says that if 5/7 of her pencils are yellow,then 2/7 are not yellow. is she correct? explain

Answer 1

Yes.

7/7 - 5/7 = 2/7

Answer 2

Yes
7/7-5/7=2/7

Answer 3

Yes. 7/7-5/7=2/7

Answer 4

Yes because 5/7 + 2/7 = 7/7