Select an even number from 0 to 20, take a half of this number and increased it by 703

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?

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.