I Need help fast on hs geometry

Which formula finds the probability that a point on the grid below will be in the blue area? p(blue) = total number of squares number of blue squares number of blue squares p(blue) = total number of squares number of blue squares p(blue) = number of white squares

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100