(write the fraction as a mixed number) anyone able to out with my 4 questions?

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

!! 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?

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 .is he correct? explain why or why not