Twice the difference of a number and four is less than the sum of the number and five

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

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.