WILL GIVE BRAINLIEST! At 8:00 A. M., a train leaves a station and travels at a rate of 44 mph. At 9:00 A. M., a second train leaves the same station on the same track and travels in the direction of the first train at a speed of 64 mph. At 10:00 A. M., how far apart are the two trains?
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Can someone me with this problem . show your work .

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

In each diagram, line p is parallel to line f, and line t intersects lines p and f. based on the diagram, what is the value of x? ( provide explanation)