3x<11.75 solve for x please, with step on how you got to that answer!

The rows and columns of lattice points in a three-by-three square array are evenly spaced one unit apart. how many distinct triangles with at least one side of length 2 units can be drawn using three lattice points for the vertices?

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36