Help me plz this is so hard got 2 hours to do this

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

How do you summarize data in a two-way frequency table?

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)