Which rules of exponents will be used to evaluate this expression? check all that apply.

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?

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Factor the polynomial. b^2 + 4b + 4