Work out the least possible value of (x-y)/x. value of x are 2 or 5 and the value of y is 3 or 12

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 perimeter, p, of a rectangle that has a length of x + 8 and a width of y − 1? p = 2x + 2y + 18 p = 2x + 2y + 14 p = x + y − 9 p = x + y + 7

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .