Can someone pls on the last 4 on the bottom

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

The formula for the lateral area of a right cone is la = rs, where r is the radius of the base and s is the slant height of the cone.which are equivalent equations?

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)