30 POINTS TO WHOEVER CAN ANSWER THIS AND BRAINLIEST

If jm equals 5x -8 and lm equals 2x -6 which expression represents jl

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)

Which fraction represents the ratio 35 : 42 in simplest form