The function f(x) varies directly with x and f(x)=160 when x=40. what is f(x) when x=8? 32 20 5 2

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 area of the triangle 10 13 12

Acircle has a circumference of 28.36 units what is the diameter of the circle