Kari estimated the quotient of -12 1/5 divided by 4 2/5 to be -8. Which best describes her error?

Which is the completely factored from of xy^3-x^3y

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

State if the two triangles are congruent. if they are, state how you know?